190250564 has 24 divisors (see below), whose sum is σ = 381501120. Its totient is φ = 81321696.

The previous prime is 190250563. The next prime is 190250597. The reversal of 190250564 is 465052091.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 190250564.

It is not an unprimeable number, because it can be changed into a prime (190250563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2159 + ... + 19625.

It is an arithmetic number, because the mean of its divisors is an integer number (15895880).

Almost surely, 2^190250564 is an apocalyptic number.

190250564 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

190250564 is an abundant number, since it is smaller than the sum of its proper divisors (191250556).

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

190250564 is a wasteful number, since it uses less digits than its factorization.

190250564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17867 (or 17865 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 32.

The square root of 190250564 is about 13793.1346691026. The cubic root of 190250564 is about 575.1423103335.

The spelling of 190250564 in words is "one hundred ninety million, two hundred fifty thousand, five hundred sixty-four".