47467640 has 32 divisors (see below), whose sum is σ = 116512560. Its totient is φ = 17260800.

The previous prime is 47467639. The next prime is 47467649. The reversal of 47467640 is 4676474.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 47467594 and 47467603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47467649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53501 + ... + 54380.

Almost surely, 2^47467640 is an apocalyptic number.

47467640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47467640 is an abundant number, since it is smaller than the sum of its proper divisors (69044920).

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

47467640 is a wasteful number, since it uses less digits than its factorization.

47467640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107903 (or 107899 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 38.

The square root of 47467640 is about 6889.6763349231. The cubic root of 47467640 is about 362.0755618951.

The spelling of 47467640 in words is "forty-seven million, four hundred sixty-seven thousand, six hundred forty".