42591992 has 16 divisors (see below), whose sum is σ = 80607960. Its totient is φ = 21096544.

The previous prime is 42591971. The next prime is 42592001. The reversal of 42591992 is 29919524.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24023 + ... + 25734.

Almost surely, 2^42591992 is an apocalyptic number.

It is an amenable number.

42591992 is a deficient number, since it is larger than the sum of its proper divisors (38015968).

42591992 is a wasteful number, since it uses less digits than its factorization.

42591992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49870 (or 49866 counting only the distinct ones).

The product of its digits is 58320, while the sum is 41.

The square root of 42591992 is about 6526.2540557352. The cubic root of 42591992 is about 349.2282095680.

The spelling of 42591992 in words is "forty-two million, five hundred ninety-one thousand, nine hundred ninety-two".