47521458 has 16 divisors (see below), whose sum is σ = 105603360. Its totient is φ = 15840468.

The previous prime is 47521447. The next prime is 47521471. The reversal of 47521458 is 85412574.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 439960 + ... + 440067.

It is an arithmetic number, because the mean of its divisors is an integer number (6600210).

Almost surely, 2^47521458 is an apocalyptic number.

47521458 is an abundant number, since it is smaller than the sum of its proper divisors (58081902).

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

47521458 is a wasteful number, since it uses less digits than its factorization.

47521458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 880038 (or 880032 counting only the distinct ones).

The product of its digits is 44800, while the sum is 36.

The square root of 47521458 is about 6893.5809272105. The cubic root of 47521458 is about 362.2123485766.

The spelling of 47521458 in words is "forty-seven million, five hundred twenty-one thousand, four hundred fifty-eight".