42858724 has 24 divisors (see below), whose sum is σ = 76507200. Its totient is φ = 21003360.

The previous prime is 42858707. The next prime is 42858733. The reversal of 42858724 is 42785824.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64707 + ... + 65365.

It is an arithmetic number, because the mean of its divisors is an integer number (3187800).

Almost surely, 2^42858724 is an apocalyptic number.

It is an amenable number.

42858724 is a deficient number, since it is larger than the sum of its proper divisors (33648476).

42858724 is a wasteful number, since it uses less digits than its factorization.

42858724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 963 (or 961 counting only the distinct ones).

The product of its digits is 143360, while the sum is 40.

The square root of 42858724 is about 6546.6574677464. The cubic root of 42858724 is about 349.9557059593.

Subtracting from 42858724 its reverse (42785824), we obtain a square (72900 = 270²).

The spelling of 42858724 in words is "forty-two million, eight hundred fifty-eight thousand, seven hundred twenty-four".