42431456 has 24 divisors (see below), whose sum is σ = 88452000. Its totient is φ = 19967488.

The previous prime is 42431447. The next prime is 42431461. The reversal of 42431456 is 65413424.

42431456 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 3 ways as a sum of consecutive naturals, for example, 38456 + ... + 39543.

It is an arithmetic number, because the mean of its divisors is an integer number (3685500).

Almost surely, 2^42431456 is an apocalyptic number.

It is an amenable number.

42431456 is an abundant number, since it is smaller than the sum of its proper divisors (46020544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42431456 is a wasteful number, since it uses less digits than its factorization.

42431456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78026 (or 78018 counting only the distinct ones).

The product of its digits is 11520, while the sum is 29.

The square root of 42431456 is about 6513.9431990155. The cubic root of 42431456 is about 348.7888915745.

The spelling of 42431456 in words is "forty-two million, four hundred thirty-one thousand, four hundred fifty-six".