47178140 has 24 divisors (see below), whose sum is σ = 104289360. Its totient is φ = 17877888.

The previous prime is 47178137. The next prime is 47178191. The reversal of 47178140 is 4187174.

It is a junction number, because it is equal to n+sod(n) for n = 47178097 and 47178106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61697 + ... + 62456.

It is an arithmetic number, because the mean of its divisors is an integer number (4345390).

Almost surely, 2^47178140 is an apocalyptic number.

It is an amenable number.

47178140 is an abundant number, since it is smaller than the sum of its proper divisors (57111220).

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

47178140 is a wasteful number, since it uses less digits than its factorization.

47178140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124181 (or 124179 counting only the distinct ones).

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 47178140 is about 6868.6345076733. The cubic root of 47178140 is about 361.3379738091.

The spelling of 47178140 in words is "forty-seven million, one hundred seventy-eight thousand, one hundred forty".