190487040 has 160 divisors (see below), whose sum is σ = 645226560. Its totient is φ = 47775744.

The previous prime is 190487039. The next prime is 190487041. The reversal of 190487040 is 40784091.

190487040 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (190487039) and next prime (190487041).

It is a tau number, because it is divible by the number of its divisors (160).

It is a junction number, because it is equal to n+sod(n) for n = 190486992 and 190487010.

It is not an unprimeable number, because it can be changed into a prime (190487041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129831 + ... + 131289.

It is an arithmetic number, because the mean of its divisors is an integer number (4032666).

Almost surely, 2^190487040 is an apocalyptic number.

190487040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190487040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (322613280).

190487040 is an abundant number, since it is smaller than the sum of its proper divisors (454739520).

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

190487040 is a wasteful number, since it uses less digits than its factorization.

190487040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1502 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 33.

The square root of 190487040 is about 13801.7042425927. The cubic root of 190487040 is about 575.3805068079.

The spelling of 190487040 in words is "one hundred ninety million, four hundred eighty-seven thousand, forty".