47538456 has 128 divisors (see below), whose sum is σ = 146188800. Its totient is φ = 12579840.

The previous prime is 47538433. The next prime is 47538473. The reversal of 47538456 is 65483574.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 169036 + ... + 169316.

It is an arithmetic number, because the mean of its divisors is an integer number (1142100).

Almost surely, 2^47538456 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 47538456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (73094400).

47538456 is an abundant number, since it is smaller than the sum of its proper divisors (98650344).

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

47538456 is a wasteful number, since it uses less digits than its factorization.

47538456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369 (or 365 counting only the distinct ones).

The product of its digits is 403200, while the sum is 42.

The square root of 47538456 is about 6894.8137030670. The cubic root of 47538456 is about 362.2555301330.

The spelling of 47538456 in words is "forty-seven million, five hundred thirty-eight thousand, four hundred fifty-six".