47008140 has 96 divisors (see below), whose sum is σ = 136914624. Its totient is φ = 12042240.

The previous prime is 47008123. The next prime is 47008153. The reversal of 47008140 is 4180074.

It is a self number, because there is not a number n which added to its sum of digits gives 47008140.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238522 + ... + 238718.

It is an arithmetic number, because the mean of its divisors is an integer number (1426194).

Almost surely, 2^47008140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47008140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68457312).

47008140 is an abundant number, since it is smaller than the sum of its proper divisors (89906484).

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

47008140 is a wasteful number, since it uses less digits than its factorization.

47008140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347 (or 345 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 24.

The square root of 47008140 is about 6856.2482452140. The cubic root of 47008140 is about 360.9034407434.

The spelling of 47008140 in words is "forty-seven million, eight thousand, one hundred forty".