47399680 has 72 divisors (see below), whose sum is σ = 119574000. Its totient is φ = 17952768.

The previous prime is 47399669. The next prime is 47399687. The reversal of 47399680 is 8699374.

It is a self number, because there is not a number n which added to its sum of digits gives 47399680.

It is not an unprimeable number, because it can be changed into a prime (47399687) 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, 23346 + ... + 25294.

It is an arithmetic number, because the mean of its divisors is an integer number (1660750).

Almost surely, 2^47399680 is an apocalyptic number.

47399680 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47399680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59787000).

47399680 is an abundant number, since it is smaller than the sum of its proper divisors (72174320).

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

47399680 is a wasteful number, since it uses less digits than its factorization.

47399680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1989 (or 1975 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 47399680 is about 6884.7425514684. The cubic root of 47399680 is about 361.9026833632.

The spelling of 47399680 in words is "forty-seven million, three hundred ninety-nine thousand, six hundred eighty".