47495840 has 48 divisors (see below), whose sum is σ = 128241792. Its totient is φ = 16283904.

The previous prime is 47495737. The next prime is 47495843. The reversal of 47495840 is 4859474.

It is not an unprimeable number, because it can be changed into a prime (47495843) 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, 20084 + ... + 22323.

It is an arithmetic number, because the mean of its divisors is an integer number (2671704).

Almost surely, 2^47495840 is an apocalyptic number.

47495840 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47495840 is an abundant number, since it is smaller than the sum of its proper divisors (80745952).

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

47495840 is a wasteful number, since it uses less digits than its factorization.

47495840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42429 (or 42421 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 41.

The square root of 47495840 is about 6891.7225713170. The cubic root of 47495840 is about 362.1472493965.

The spelling of 47495840 in words is "forty-seven million, four hundred ninety-five thousand, eight hundred forty".