47920392 has 48 divisors (see below), whose sum is σ = 139770540. Its totient is φ = 14744448.

The previous prime is 47920391. The next prime is 47920393. The reversal of 47920392 is 29302974.

It is an interprime number because it is at equal distance from previous prime (47920391) and next prime (47920393).

It can be written as a sum of positive squares in 2 ways, for example, as 46867716 + 1052676 = 6846^2 + 1026^2 .

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

It is not an unprimeable number, because it can be changed into a prime (47920391) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24663 + ... + 26534.

Almost surely, 2^47920392 is an apocalyptic number.

It is an amenable number.

47920392 is an abundant number, since it is smaller than the sum of its proper divisors (91850148).

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

47920392 is a wasteful number, since it uses less digits than its factorization.

47920392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51222 (or 51215 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 47920392 is about 6922.4556336606. The cubic root of 47920392 is about 363.2230944257.

The spelling of 47920392 in words is "forty-seven million, nine hundred twenty thousand, three hundred ninety-two".