2431574721 has 15 divisors (see below), whose sum is σ = 3633015441. Its totient is φ = 1620753948.

The previous prime is 2431574711. The next prime is 2431574731. The reversal of 2431574721 is 1274751342.

The square root of 2431574721 is 49311.

It is a perfect power (a square), and thus also a powerful number.

It is an interprime number because it is at equal distance from previous prime (2431574711) and next prime (2431574731).

It is not a de Polignac number, because 2431574721 - 2⁵ = 2431574689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2431574711) by changing a digit.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 441060 + ... + 446538.

Almost surely, 2^2431574721 is an apocalyptic number.

2431574721 is the 49311-st square number.

2431574721 is the 24656-th centered octagonal number.

It is an amenable number.

2431574721 is a deficient number, since it is larger than the sum of its proper divisors (1201440720).

2431574721 is an frugal number, since it uses more digits than its factorization.

2431574721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10970 (or 5482 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The cubic root of 2431574721 is about 1344.7117712235.

Multiplying 2431574721 by its sum of digits (36), we get a square (87536689956 = 295866²).

The spelling of 2431574721 in words is "two billion, four hundred thirty-one million, five hundred seventy-four thousand, seven hundred twenty-one".