47820140 has 24 divisors (see below), whose sum is σ = 100756320. Its totient is φ = 19064448.

The previous prime is 47820107. The next prime is 47820163. The reversal of 47820140 is 4102874.

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, 2441 + ... + 10079.

It is an arithmetic number, because the mean of its divisors is an integer number (4198180).

Almost surely, 2^47820140 is an apocalyptic number.

It is an amenable number.

47820140 is an abundant number, since it is smaller than the sum of its proper divisors (52936180).

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

47820140 is a wasteful number, since it uses less digits than its factorization.

47820140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7961 (or 7959 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 26.

The square root of 47820140 is about 6915.2107704682. The cubic root of 47820140 is about 362.9696235968.

The spelling of 47820140 in words is "forty-seven million, eight hundred twenty thousand, one hundred forty".