42392216 has 8 divisors (see below), whose sum is σ = 79485420. Its totient is φ = 21196104.

The previous prime is 42392179. The next prime is 42392263. The reversal of 42392216 is 61229324.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-4 number, since 4×42392216⁴ (a number of 32 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2649506 + ... + 2649521.

Almost surely, 2^42392216 is an apocalyptic number.

It is an amenable number.

42392216 is a deficient number, since it is larger than the sum of its proper divisors (37093204).

42392216 is a wasteful number, since it uses less digits than its factorization.

42392216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5299033 (or 5299029 counting only the distinct ones).

The product of its digits is 5184, while the sum is 29.

The square root of 42392216 is about 6510.9305018561. The cubic root of 42392216 is about 348.6813400975.

The spelling of 42392216 in words is "forty-two million, three hundred ninety-two thousand, two hundred sixteen".