47623640 has 16 divisors (see below), whose sum is σ = 107153280. Its totient is φ = 19049440.

The previous prime is 47623637. The next prime is 47623663. The reversal of 47623640 is 4632674.

It is a super-2 number, since 2×47623640² = 4536022173699200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 47623597 and 47623606.

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, 595256 + ... + 595335.

It is an arithmetic number, because the mean of its divisors is an integer number (6697080).

Almost surely, 2^47623640 is an apocalyptic number.

47623640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47623640 is an abundant number, since it is smaller than the sum of its proper divisors (59529640).

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

47623640 is a wasteful number, since it uses less digits than its factorization.

47623640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1190602 (or 1190598 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 47623640 is about 6900.9883350141. The cubic root of 47623640 is about 362.4717758445.

The spelling of 47623640 in words is "forty-seven million, six hundred twenty-three thousand, six hundred forty".