42858456 has 16 divisors (see below), whose sum is σ = 107146200. Its totient is φ = 14286144.

The previous prime is 42858443. The next prime is 42858467. The reversal of 42858456 is 65485824.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 892861 + ... + 892908.

Almost surely, 2^42858456 is an apocalyptic number.

It is an amenable number.

42858456 is an abundant number, since it is smaller than the sum of its proper divisors (64287744).

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

42858456 is a wasteful number, since it uses less digits than its factorization.

42858456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1785778 (or 1785774 counting only the distinct ones).

The product of its digits is 307200, while the sum is 42.

The square root of 42858456 is about 6546.6369992539. The cubic root of 42858456 is about 349.9549765214.

The spelling of 42858456 in words is "forty-two million, eight hundred fifty-eight thousand, four hundred fifty-six".