47442456 has 64 divisors (see below), whose sum is σ = 132480000. Its totient is φ = 15730848.

The previous prime is 47442407. The next prime is 47442497. The reversal of 47442456 is 65424474.

47442456 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 47442456.

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 15 ways as a sum of consecutive naturals, for example, 51165 + ... + 52083.

It is an arithmetic number, because the mean of its divisors is an integer number (2070000).

Almost surely, 2^47442456 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 47442456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66240000).

47442456 is an abundant number, since it is smaller than the sum of its proper divisors (85037544).

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

47442456 is a wasteful number, since it uses less digits than its factorization.

47442456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173 (or 1163 counting only the distinct ones).

The product of its digits is 107520, while the sum is 36.

The square root of 47442456 is about 6887.8484303881. The cubic root of 47442456 is about 362.0115173935.

The spelling of 47442456 in words is "forty-seven million, four hundred forty-two thousand, four hundred fifty-six".