47685220 has 24 divisors (see below), whose sum is σ = 109243008. Its totient is φ = 17340000.

The previous prime is 47685203. The next prime is 47685227. The reversal of 47685220 is 2258674.

It is not an unprimeable number, because it can be changed into a prime (47685227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108156 + ... + 108595.

It is an arithmetic number, because the mean of its divisors is an integer number (4551792).

Almost surely, 2^47685220 is an apocalyptic number.

It is an amenable number.

47685220 is an abundant number, since it is smaller than the sum of its proper divisors (61557788).

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

47685220 is a wasteful number, since it uses less digits than its factorization.

47685220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216771 (or 216769 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

The square root of 47685220 is about 6905.4485734093. The cubic root of 47685220 is about 362.6279405707.

The spelling of 47685220 in words is "forty-seven million, six hundred eighty-five thousand, two hundred twenty".