42864975 has 36 divisors (see below), whose sum is σ = 78101400. Its totient is φ = 22466880.

The previous prime is 42864923. The next prime is 42865001. The reversal of 42864975 is 57946824.

It is a happy number.

It is not a de Polignac number, because 42864975 - 2⁶ = 42864911 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 42864975.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 11661 + ... + 14889.

It is a vampire number, since it can be written as 4425 ⋅ 9687 (with its own digits).

Almost surely, 2^42864975 is an apocalyptic number.

42864975 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42864975 is a deficient number, since it is larger than the sum of its proper divisors (35236425).

42864975 is a wasteful number, since it uses less digits than its factorization.

42864975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304 (or 3296 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 42864975 is about 6547.1348695441. The cubic root of 42864975 is about 349.9727189620.

It can be divided in two parts, 4286 and 4975, that added together give a cube (9261 = 21³).

The spelling of 42864975 in words is "forty-two million, eight hundred sixty-four thousand, nine hundred seventy-five".