47572290 has 144 divisors (see below), whose sum is σ = 137928960. Its totient is φ = 11358720.

The previous prime is 47572289. The next prime is 47572297. The reversal of 47572290 is 9227574.

47572290 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47572297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 806281 + ... + 806339.

It is an arithmetic number, because the mean of its divisors is an integer number (957840).

Almost surely, 2^47572290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47572290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68964480).

47572290 is an abundant number, since it is smaller than the sum of its proper divisors (90356670).

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

47572290 is a wasteful number, since it uses less digits than its factorization.

47572290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137 (or 117 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 47572290 is about 6897.2668499921. The cubic root of 47572290 is about 362.3414510768.

The spelling of 47572290 in words is "forty-seven million, five hundred seventy-two thousand, two hundred ninety".