47442428 has 24 divisors (see below), whose sum is σ = 90889344. Its totient is φ = 21489200.

The previous prime is 47442407. The next prime is 47442497. The reversal of 47442428 is 82424474.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11951 + ... + 15417.

It is an arithmetic number, because the mean of its divisors is an integer number (3787056).

Almost surely, 2^47442428 is an apocalyptic number.

It is an amenable number.

47442428 is a deficient number, since it is larger than the sum of its proper divisors (43446916).

47442428 is a wasteful number, since it uses less digits than its factorization.

47442428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793 (or 3791 counting only the distinct ones).

The product of its digits is 57344, while the sum is 35.

The square root of 47442428 is about 6887.8463978228. The cubic root of 47442428 is about 362.0114461751.

The spelling of 47442428 in words is "forty-seven million, four hundred forty-two thousand, four hundred twenty-eight".