860492920 has 96 divisors (see below), whose sum is σ = 2300374080. Its totient is φ = 288718080.

The previous prime is 860492911. The next prime is 860492923. The reversal of 860492920 is 29294068.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860492923) 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 23 ways as a sum of consecutive naturals, for example, 87450 + ... + 96790.

It is an arithmetic number, because the mean of its divisors is an integer number (23962230).

Almost surely, 2^860492920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 860492920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1150187040).

860492920 is an abundant number, since it is smaller than the sum of its proper divisors (1439881160).

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

860492920 is a wasteful number, since it uses less digits than its factorization.

860492920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9413 (or 9402 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 860492920 is about 29334.1596095746. The cubic root of 860492920 is about 951.1501931992.

The spelling of 860492920 in words is "eight hundred sixty million, four hundred ninety-two thousand, nine hundred twenty".