42431613 has 16 divisors (see below), whose sum is σ = 65233536. Its totient is φ = 24030720.

The previous prime is 42431567. The next prime is 42431651. The reversal of 42431613 is 31613424.

It is not a de Polignac number, because 42431613 - 2⁶ = 42431549 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42431663) 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, 6568 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (4077096).

Almost surely, 2^42431613 is an apocalyptic number.

It is an amenable number.

42431613 is a deficient number, since it is larger than the sum of its proper divisors (22801923).

42431613 is a wasteful number, since it uses less digits than its factorization.

42431613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18004.

The product of its digits is 1728, while the sum is 24.

The square root of 42431613 is about 6513.9552500766. The cubic root of 42431613 is about 348.7893217569.

The spelling of 42431613 in words is "forty-two million, four hundred thirty-one thousand, six hundred thirteen".