47681420 has 12 divisors (see below), whose sum is σ = 100131024. Its totient is φ = 19072560.

The previous prime is 47681363. The next prime is 47681437. The reversal of 47681420 is 2418674.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192016 + ... + 1192055.

It is an arithmetic number, because the mean of its divisors is an integer number (8344252).

Almost surely, 2^47681420 is an apocalyptic number.

It is an amenable number.

47681420 is an abundant number, since it is smaller than the sum of its proper divisors (52449604).

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

47681420 is a wasteful number, since it uses less digits than its factorization.

47681420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2384080 (or 2384078 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 47681420 is about 6905.1734228765. The cubic root of 47681420 is about 362.6183077971.

The spelling of 47681420 in words is "forty-seven million, six hundred eighty-one thousand, four hundred twenty".