47323640 has 64 divisors (see below), whose sum is σ = 131060160. Its totient is φ = 14976000.

The previous prime is 47323603. The next prime is 47323643. The reversal of 47323640 is 4632374.

It is a happy number.

47323640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×47323640³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47323643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2861 + ... + 10140.

It is an arithmetic number, because the mean of its divisors is an integer number (2047815).

Almost surely, 2^47323640 is an apocalyptic number.

47323640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47323640 is an abundant number, since it is smaller than the sum of its proper divisors (83736520).

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

47323640 is a wasteful number, since it uses less digits than its factorization.

47323640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13032 (or 13028 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 29.

The square root of 47323640 is about 6879.2179788113. The cubic root of 47323640 is about 361.7090547084.

The spelling of 47323640 in words is "forty-seven million, three hundred twenty-three thousand, six hundred forty".