42631056 has 80 divisors (see below), whose sum is σ = 131797120. Its totient is φ = 13115520.

The previous prime is 42631049. The next prime is 42631063. The reversal of 42631056 is 65013624.

42631056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42631049) and next prime (42631063).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 1821 + ... + 9411.

It is an arithmetic number, because the mean of its divisors is an integer number (1647464).

Almost surely, 2^42631056 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42631056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65898560).

42631056 is an abundant number, since it is smaller than the sum of its proper divisors (89166064).

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

42631056 is a wasteful number, since it uses less digits than its factorization.

42631056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621 (or 7609 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 42631056 is about 6529.2462045783. The cubic root of 42631056 is about 349.3349438899.

The spelling of 42631056 in words is "forty-two million, six hundred thirty-one thousand, fifty-six".