47221472 has 24 divisors (see below), whose sum is σ = 95482296. Its totient is φ = 22972032.

The previous prime is 47221469. The next prime is 47221477. The reversal of 47221472 is 27412274.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47221477) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18758 + ... + 21125.

It is an arithmetic number, because the mean of its divisors is an integer number (3978429).

Almost surely, 2^47221472 is an apocalyptic number.

It is an amenable number.

47221472 is an abundant number, since it is smaller than the sum of its proper divisors (48260824).

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

47221472 is a wasteful number, since it uses less digits than its factorization.

47221472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39930 (or 39922 counting only the distinct ones).

The product of its digits is 6272, while the sum is 29.

The square root of 47221472 is about 6871.7881224613. The cubic root of 47221472 is about 361.4485667365.

The spelling of 47221472 in words is "forty-seven million, two hundred twenty-one thousand, four hundred seventy-two".