42592991 has 16 divisors (see below), whose sum is σ = 49627200. Its totient is φ = 35804160.

The previous prime is 42592969. The next prime is 42592993. The reversal of 42592991 is 19929524.

It is a happy number.

It is not a de Polignac number, because 42592991 - 2²² = 38398687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42592993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100961 + ... + 101381.

It is an arithmetic number, because the mean of its divisors is an integer number (3101700).

Almost surely, 2^42592991 is an apocalyptic number.

42592991 is a deficient number, since it is larger than the sum of its proper divisors (7034209).

42592991 is a wasteful number, since it uses less digits than its factorization.

42592991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674.

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

The square root of 42592991 is about 6526.3305923007. The cubic root of 42592991 is about 349.2309399424.

The spelling of 42592991 in words is "forty-two million, five hundred ninety-two thousand, nine hundred ninety-one".