47901240 has 128 divisors (see below), whose sum is σ = 169128000. Its totient is φ = 12017664.

The previous prime is 47901239. The next prime is 47901247. The reversal of 47901240 is 4210974.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47901247) 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, 17056 + ... + 19664.

Almost surely, 2^47901240 is an apocalyptic number.

47901240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47901240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84564000).

47901240 is an abundant number, since it is smaller than the sum of its proper divisors (121226760).

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

47901240 is a wasteful number, since it uses less digits than its factorization.

47901240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2646 (or 2636 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

The square root of 47901240 is about 6921.0721712752. The cubic root of 47901240 is about 363.1746990533.

The spelling of 47901240 in words is "forty-seven million, nine hundred one thousand, two hundred forty".