42431590 has 16 divisors (see below), whose sum is σ = 76451040. Its totient is φ = 16956160.

The previous prime is 42431567. The next prime is 42431651. The reversal of 42431590 is 9513424.

42431590 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19350 + ... + 21430.

It is an arithmetic number, because the mean of its divisors is an integer number (4778190).

Almost surely, 2^42431590 is an apocalyptic number.

42431590 is a deficient number, since it is larger than the sum of its proper divisors (34019450).

42431590 is a wasteful number, since it uses less digits than its factorization.

42431590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 42431590 is about 6513.9534846359. The cubic root of 42431590 is about 348.7892587366.

The spelling of 42431590 in words is "forty-two million, four hundred thirty-one thousand, five hundred ninety".