47276640 has 72 divisors (see below), whose sum is σ = 161336448. Its totient is φ = 12606720.

The previous prime is 47276633. The next prime is 47276659. The reversal of 47276640 is 4667274.

47276640 is a `hidden beast` number, since 4 + 7 + 2 + 7 + 6 + 640 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a junction number, because it is equal to n+sod(n) for n = 47276595 and 47276604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14976 + ... + 17855.

It is an arithmetic number, because the mean of its divisors is an integer number (2240784).

Almost surely, 2^47276640 is an apocalyptic number.

47276640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47276640 is an abundant number, since it is smaller than the sum of its proper divisors (114059808).

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

47276640 is a wasteful number, since it uses less digits than its factorization.

47276640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32852 (or 32841 counting only the distinct ones).

The product of its (nonzero) digits is 56448, while the sum is 36.

The square root of 47276640 is about 6875.8010442420. The cubic root of 47276640 is about 361.5892699194.

The spelling of 47276640 in words is "forty-seven million, two hundred seventy-six thousand, six hundred forty".