47890404 has 36 divisors (see below), whose sum is σ = 121452240. Its totient is φ = 15911280.

The previous prime is 47890399. The next prime is 47890421. The reversal of 47890404 is 40409874.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 9907 + ... + 13925.

Almost surely, 2^47890404 is an apocalyptic number.

It is an amenable number.

47890404 is an abundant number, since it is smaller than the sum of its proper divisors (73561836).

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

47890404 is a wasteful number, since it uses less digits than its factorization.

47890404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4360 (or 4355 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 47890404 is about 6920.2893003111. The cubic root of 47890404 is about 363.1473117468.

The spelling of 47890404 in words is "forty-seven million, eight hundred ninety thousand, four hundred four".