47500440 has 64 divisors (see below), whose sum is σ = 153468000. Its totient is φ = 11692032.

The previous prime is 47500433. The next prime is 47500441. The reversal of 47500440 is 4400574.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 47500440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47500441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13665 + ... + 16784.

Almost surely, 2^47500440 is an apocalyptic number.

47500440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

47500440 is an abundant number, since it is smaller than the sum of its proper divisors (105967560).

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

47500440 is a wasteful number, since it uses less digits than its factorization.

47500440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30476 (or 30472 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 47500440 is about 6892.0562969262. The cubic root of 47500440 is about 362.1589404103.

The spelling of 47500440 in words is "forty-seven million, five hundred thousand, four hundred forty".