47200640 has 32 divisors (see below), whose sum is σ = 112840560. Its totient is φ = 18880000.

The previous prime is 47200583. The next prime is 47200691. The reversal of 47200640 is 4600274.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

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, 36236 + ... + 37515.

Almost surely, 2^47200640 is an apocalyptic number.

47200640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47200640 is an abundant number, since it is smaller than the sum of its proper divisors (65639920).

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

47200640 is an equidigital number, since it uses as much as digits as its factorization.

47200640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73770 (or 73758 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 23.

The square root of 47200640 is about 6870.2721925700. The cubic root of 47200640 is about 361.3954072750.

The spelling of 47200640 in words is "forty-seven million, two hundred thousand, six hundred forty".