47724128 has 24 divisors (see below), whose sum is σ = 96989760. Its totient is φ = 23091840.

The previous prime is 47724119. The next prime is 47724163. The reversal of 47724128 is 82142774.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 23063 + ... + 25046.

It is an arithmetic number, because the mean of its divisors is an integer number (4041240).

Almost surely, 2^47724128 is an apocalyptic number.

It is an amenable number.

47724128 is an abundant number, since it is smaller than the sum of its proper divisors (49265632).

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

47724128 is a wasteful number, since it uses less digits than its factorization.

47724128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48150 (or 48142 counting only the distinct ones).

The product of its digits is 25088, while the sum is 35.

The square root of 47724128 is about 6908.2651946780. The cubic root of 47724128 is about 362.7265406000.

The spelling of 47724128 in words is "forty-seven million, seven hundred twenty-four thousand, one hundred twenty-eight".