47477040 has 80 divisors (see below), whose sum is σ = 158510688. Its totient is φ = 11685888.

The previous prime is 47477033. The next prime is 47477041. The reversal of 47477040 is 4077474.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 47476992 and 47477010.

It is not an unprimeable number, because it can be changed into a prime (47477041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4489 + ... + 10728.

Almost surely, 2^47477040 is an apocalyptic number.

47477040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47477040 is an abundant number, since it is smaller than the sum of its proper divisors (111033648).

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

47477040 is a wasteful number, since it uses less digits than its factorization.

47477040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15246 (or 15240 counting only the distinct ones).

The product of its (nonzero) digits is 21952, while the sum is 33.

The square root of 47477040 is about 6890.3584812403. The cubic root of 47477040 is about 362.0994608829.

The spelling of 47477040 in words is "forty-seven million, four hundred seventy-seven thousand, forty".