47712144 has 40 divisors (see below), whose sum is σ = 125884800. Its totient is φ = 15564928.

The previous prime is 47712113. The next prime is 47712157. The reversal of 47712144 is 44121774.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8319 + ... + 12830.

It is an arithmetic number, because the mean of its divisors is an integer number (3147120).

Almost surely, 2^47712144 is an apocalyptic number.

It is an amenable number.

47712144 is an abundant number, since it is smaller than the sum of its proper divisors (78172656).

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

47712144 is a wasteful number, since it uses less digits than its factorization.

47712144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21207 (or 21201 counting only the distinct ones).

The product of its digits is 6272, while the sum is 30.

The square root of 47712144 is about 6907.3977734021. The cubic root of 47712144 is about 362.6961766525.

It can be divided in two parts, 477 and 12144, that added together give a palindrome (12621).

The spelling of 47712144 in words is "forty-seven million, seven hundred twelve thousand, one hundred forty-four".