860399542 has 16 divisors (see below), whose sum is σ = 1296668160. Its totient is φ = 428182272.

The previous prime is 860399489. The next prime is 860399543. The reversal of 860399542 is 245993068.

It is a junction number, because it is equal to n+sod(n) for n = 860399492 and 860399501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (860399543) 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, 514684 + ... + 516352.

It is an arithmetic number, because the mean of its divisors is an integer number (81041760).

Almost surely, 2^860399542 is an apocalyptic number.

860399542 is a deficient number, since it is larger than the sum of its proper divisors (436268618).

860399542 is a wasteful number, since it uses less digits than its factorization.

860399542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2727.

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 860399542 is about 29332.5679407719. The cubic root of 860399542 is about 951.1157866734.

The spelling of 860399542 in words is "eight hundred sixty million, three hundred ninety-nine thousand, five hundred forty-two".