47439252 has 54 divisors (see below), whose sum is σ = 139499178. Its totient is φ = 13553568.

The previous prime is 47439247. The next prime is 47439281. The reversal of 47439252 is 25293474.

It can be written as a sum of positive squares in only one way, i.e., 46867716 + 571536 = 6846^2 + 756^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 11683 + ... + 15210.

Almost surely, 2^47439252 is an apocalyptic number.

47439252 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

47439252 is an abundant number, since it is smaller than the sum of its proper divisors (92059926).

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

47439252 is a wasteful number, since it uses less digits than its factorization.

47439252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26917 (or 26905 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 47439252 is about 6887.6158429459. The cubic root of 47439252 is about 362.0033677942.

The spelling of 47439252 in words is "forty-seven million, four hundred thirty-nine thousand, two hundred fifty-two".