42493215 has 16 divisors (see below), whose sum is σ = 71568000. Its totient is φ = 21470112.

The previous prime is 42493181. The next prime is 42493229. The reversal of 42493215 is 51239424.

It is not a de Polignac number, because 42493215 - 2¹⁴ = 42476831 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74265 + ... + 74834.

It is an arithmetic number, because the mean of its divisors is an integer number (4473000).

Almost surely, 2^42493215 is an apocalyptic number.

42493215 is a deficient number, since it is larger than the sum of its proper divisors (29074785).

42493215 is a wasteful number, since it uses less digits than its factorization.

42493215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149126.

The product of its digits is 8640, while the sum is 30.

The square root of 42493215 is about 6518.6819986865. The cubic root of 42493215 is about 348.9580303277.

It can be divided in two parts, 424 and 93215, that added together give a palindrome (93639).

The spelling of 42493215 in words is "forty-two million, four hundred ninety-three thousand, two hundred fifteen".