42864375 has 20 divisors (see below), whose sum is σ = 71420888. Its totient is φ = 22860000.

The previous prime is 42864337. The next prime is 42864443. The reversal of 42864375 is 57346824.

It is a happy number.

It is not a de Polignac number, because 42864375 - 2¹¹ = 42862327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 9556 + ... + 13305.

Almost surely, 2^42864375 is an apocalyptic number.

42864375 is a deficient number, since it is larger than the sum of its proper divisors (28556513).

42864375 is an equidigital number, since it uses as much as digits as its factorization.

42864375 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22884 (or 22869 counting only the distinct ones).

The product of its digits is 161280, while the sum is 39.

The square root of 42864375 is about 6547.0890478135. The cubic root of 42864375 is about 349.9710860468.

The spelling of 42864375 in words is "forty-two million, eight hundred sixty-four thousand, three hundred seventy-five".