47425644 has 36 divisors (see below), whose sum is σ = 137008144. Its totient is φ = 13550112.

The previous prime is 47425613. The next prime is 47425663. The reversal of 47425644 is 44652474.

47425644 is a `hidden beast` number, since 4 + 7 + 4 + 2 + 5 + 644 = 666.

47425644 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 47425599 and 47425608.

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 11 ways as a sum of consecutive naturals, for example, 93847 + ... + 94350.

Almost surely, 2^47425644 is an apocalyptic number.

It is an amenable number.

47425644 is an abundant number, since it is smaller than the sum of its proper divisors (89582500).

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

47425644 is a wasteful number, since it uses less digits than its factorization.

47425644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188214 (or 188209 counting only the distinct ones).

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

The square root of 47425644 is about 6886.6279121207. The cubic root of 47425644 is about 361.9687508001.

The spelling of 47425644 in words is "forty-seven million, four hundred twenty-five thousand, six hundred forty-four".