252747944 has 16 divisors (see below), whose sum is σ = 485461620. Its totient is φ = 123291520.

The previous prime is 252747931. The next prime is 252747947. The reversal of 252747944 is 449747252.

It can be written as a sum of positive squares in 2 ways, for example, as 251603044 + 1144900 = 15862^2 + 1070^2 .

It is a junction number, because it is equal to n+sod(n) for n = 252747895 and 252747904.

It is not an unprimeable number, because it can be changed into a prime (252747947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 384959 + ... + 385614.

Almost surely, 2^252747944 is an apocalyptic number.

It is an amenable number.

252747944 is a deficient number, since it is larger than the sum of its proper divisors (232713676).

252747944 is a wasteful number, since it uses less digits than its factorization.

252747944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 770620 (or 770616 counting only the distinct ones).

The product of its digits is 564480, while the sum is 44.

The square root of 252747944 is about 15898.0484336915. The cubic root of 252747944 is about 632.2602477304.

The spelling of 252747944 in words is "two hundred fifty-two million, seven hundred forty-seven thousand, nine hundred forty-four".