47407240 has 16 divisors (see below), whose sum is σ = 106666380. Its totient is φ = 18962880.

The previous prime is 47407231. The next prime is 47407253. The reversal of 47407240 is 4270474.

It can be written as a sum of positive squares in 2 ways, for example, as 43270084 + 4137156 = 6578^2 + 2034^2 .

It is a junction number, because it is equal to n+sod(n) for n = 47407199 and 47407208.

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, 592551 + ... + 592630.

Almost surely, 2^47407240 is an apocalyptic number.

47407240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47407240 is an abundant number, since it is smaller than the sum of its proper divisors (59259140).

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

47407240 is a wasteful number, since it uses less digits than its factorization.

47407240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185192 (or 1185188 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 28.

The square root of 47407240 is about 6885.2915697158. The cubic root of 47407240 is about 361.9219228661.

The spelling of 47407240 in words is "forty-seven million, four hundred seven thousand, two hundred forty".