42250864 has 20 divisors (see below), whose sum is σ = 81964000. Its totient is φ = 21098880.

The previous prime is 42250849. The next prime is 42250913. The reversal of 42250864 is 46805224.

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, 20137 + ... + 22135.

It is an arithmetic number, because the mean of its divisors is an integer number (4098200).

Almost surely, 2^42250864 is an apocalyptic number.

It is an amenable number.

42250864 is a deficient number, since it is larger than the sum of its proper divisors (39713136).

42250864 is a wasteful number, since it uses less digits than its factorization.

42250864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3328 (or 3322 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 31.

The square root of 42250864 is about 6500.0664611987. The cubic root of 42250864 is about 348.2933625272.

Adding to 42250864 its product of nonzero digits (15360), we get a palindrome (42266224).

The spelling of 42250864 in words is "forty-two million, two hundred fifty thousand, eight hundred sixty-four".