42088431 has 16 divisors (see below), whose sum is σ = 69965568. Its totient is φ = 21864000.

The previous prime is 42088399. The next prime is 42088463. The reversal of 42088431 is 13488024.

It is an interprime number because it is at equal distance from previous prime (42088399) and next prime (42088463).

It is not a de Polignac number, because 42088431 - 2⁵ = 42088399 is a prime.

It is a super-2 number, since 2×42088431² = 3542872048083522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42088471) 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, 90870 + ... + 91331.

It is an arithmetic number, because the mean of its divisors is an integer number (4372848).

Almost surely, 2^42088431 is an apocalyptic number.

42088431 is a deficient number, since it is larger than the sum of its proper divisors (27877137).

42088431 is a wasteful number, since it uses less digits than its factorization.

42088431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182222.

The product of its (nonzero) digits is 6144, while the sum is 30.

The square root of 42088431 is about 6487.5597107079. The cubic root of 42088431 is about 347.8464526067.

The spelling of 42088431 in words is "forty-two million, eighty-eight thousand, four hundred thirty-one".