47720452 has 24 divisors (see below), whose sum is σ = 90286616. Its totient is φ = 21938688.

The previous prime is 47720447. The next prime is 47720459. The reversal of 47720452 is 25402774.

It can be written as a sum of positive squares in 4 ways, for example, as 3444736 + 44275716 = 1856^2 + 6654^2 .

It is not an unprimeable number, because it can be changed into a prime (47720459) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12748 + ... + 16060.

Almost surely, 2^47720452 is an apocalyptic number.

It is an amenable number.

47720452 is a deficient number, since it is larger than the sum of its proper divisors (42566164).

47720452 is a wasteful number, since it uses less digits than its factorization.

47720452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607 (or 3605 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 47720452 is about 6907.9991314418. Note that the first 3 decimals coincide. The cubic root of 47720452 is about 362.7172272327.

The spelling of 47720452 in words is "forty-seven million, seven hundred twenty thousand, four hundred fifty-two".