47990178 has 32 divisors (see below), whose sum is σ = 108155520. Its totient is φ = 15770160.

The previous prime is 47990171. The next prime is 47990179. The reversal of 47990178 is 87109974.

47990178 is a `hidden beast` number, since 479 + 9 + 0 + 178 = 666.

It is not an unprimeable number, because it can be changed into a prime (47990171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2425 + ... + 10092.

It is an arithmetic number, because the mean of its divisors is an integer number (3379860).

Almost surely, 2^47990178 is an apocalyptic number.

47990178 is an abundant number, since it is smaller than the sum of its proper divisors (60165342).

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

47990178 is a wasteful number, since it uses less digits than its factorization.

47990178 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12599 (or 12593 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 45.

The square root of 47990178 is about 6927.4943522171. The cubic root of 47990178 is about 363.3993283220.

The spelling of 47990178 in words is "forty-seven million, nine hundred ninety thousand, one hundred seventy-eight".