47540856 has 128 divisors (see below), whose sum is σ = 138332160. Its totient is φ = 13478400.

The previous prime is 47540851. The next prime is 47540861. The reversal of 47540856 is 65804574.

It is an interprime number because it is at equal distance from previous prime (47540851) and next prime (47540861).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47540851) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 302730 + ... + 302886.

It is an arithmetic number, because the mean of its divisors is an integer number (1080720).

Almost surely, 2^47540856 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 47540856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69166080).

47540856 is an abundant number, since it is smaller than the sum of its proper divisors (90791304).

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

47540856 is a wasteful number, since it uses less digits than its factorization.

47540856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 241 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 39.

The square root of 47540856 is about 6894.9877447317. The cubic root of 47540856 is about 362.2616262407.

The spelling of 47540856 in words is "forty-seven million, five hundred forty thousand, eight hundred fifty-six".