860542872 has 64 divisors (see below), whose sum is σ = 2484088320. Its totient is φ = 243330048.

The previous prime is 860542871. The next prime is 860542877. The reversal of 860542872 is 278245068.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860542871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10108 + ... + 42699.

It is an arithmetic number, because the mean of its divisors is an integer number (38813880).

Almost surely, 2^860542872 is an apocalyptic number.

It is an amenable number.

860542872 is an abundant number, since it is smaller than the sum of its proper divisors (1623545448).

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

860542872 is a wasteful number, since it uses less digits than its factorization.

860542872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52920 (or 52916 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 42.

The square root of 860542872 is about 29335.0110277804. The cubic root of 860542872 is about 951.1685977415.

The spelling of 860542872 in words is "eight hundred sixty million, five hundred forty-two thousand, eight hundred seventy-two".