47221932 has 12 divisors (see below), whose sum is σ = 110184536. Its totient is φ = 15740640.

The previous prime is 47221919. The next prime is 47221939. The reversal of 47221932 is 23912274.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 47221932.

It is not an unprimeable number, because it can be changed into a prime (47221939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1967569 + ... + 1967592.

Almost surely, 2^47221932 is an apocalyptic number.

It is an amenable number.

47221932 is an abundant number, since it is smaller than the sum of its proper divisors (62962604).

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

47221932 is a wasteful number, since it uses less digits than its factorization.

47221932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3935168 (or 3935166 counting only the distinct ones).

The product of its digits is 6048, while the sum is 30.

The square root of 47221932 is about 6871.8215925619. The cubic root of 47221932 is about 361.4497403961.

The spelling of 47221932 in words is "forty-seven million, two hundred twenty-one thousand, nine hundred thirty-two".