190605636 has 135 divisors (see below), whose sum is σ = 548858541. Its totient is φ = 57653856.

The previous prime is 190605629. The next prime is 190605637. The reversal of 190605636 is 636506091.

The square root of 190605636 is 13806.

It is a perfect power (a square), and thus also a powerful number.

190605636 is a `hidden beast` number, since 1 + 90 + 6 + 0 + 563 + 6 = 666.

190605636 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 28196100 + 162409536 = 5310^2 + 12744^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 190605636.

It is not an unprimeable number, because it can be changed into a prime (190605637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 3230575 + ... + 3230633.

Almost surely, 2^190605636 is an apocalyptic number.

190605636 is the 13806-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190605636

190605636 is an abundant number, since it is smaller than the sum of its proper divisors (358252905).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190605636 is a wasteful number, since it uses less digits than its factorization.

190605636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160 (or 77 counting only the distinct ones).

The product of its (nonzero) digits is 29160, while the sum is 36.

The cubic root of 190605636 is about 575.4998914302.

Multiplying 190605636 by its sum of digits (36), we get a square (6861802896 = 82836²).

190605636 divided by its sum of digits (36) gives a square (5294601 = 2301²).

The spelling of 190605636 in words is "one hundred ninety million, six hundred five thousand, six hundred thirty-six".