47246640 has 80 divisors (see below), whose sum is σ = 167394048. Its totient is φ = 10798848.

The previous prime is 47246603. The next prime is 47246659. The reversal of 47246640 is 4664274.

It is a tau number, because it is divible by the number of its divisors (80).

It is a hoax number, since the sum of its digits (33) 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 15 ways as a sum of consecutive naturals, for example, 12382 + ... + 15741.

Almost surely, 2^47246640 is an apocalyptic number.

47246640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47246640 is an abundant number, since it is smaller than the sum of its proper divisors (120147408).

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

47246640 is a wasteful number, since it uses less digits than its factorization.

47246640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28146 (or 28140 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 47246640 is about 6873.6191340516. The cubic root of 47246640 is about 361.5127700284.

The spelling of 47246640 in words is "forty-seven million, two hundred forty-six thousand, six hundred forty".