42538265 has 32 divisors (see below), whose sum is σ = 64025856. Its totient is φ = 26357760.

The previous prime is 42538259. The next prime is 42538291. The reversal of 42538265 is 56283524.

It is not a de Polignac number, because 42538265 - 2⁸ = 42538009 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 120329 + ... + 120681.

It is an arithmetic number, because the mean of its divisors is an integer number (2000808).

Almost surely, 2^42538265 is an apocalyptic number.

It is an amenable number.

42538265 is a deficient number, since it is larger than the sum of its proper divisors (21487591).

42538265 is a wasteful number, since it uses less digits than its factorization.

42538265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 689.

The product of its digits is 57600, while the sum is 35.

The square root of 42538265 is about 6522.1365364426. The cubic root of 42538265 is about 349.0813049654.

The spelling of 42538265 in words is "forty-two million, five hundred thirty-eight thousand, two hundred sixty-five".