1244625472 has 28 divisors (see below), whose sum is σ = 2503645996. Its totient is φ = 613785600.

The previous prime is 1244625469. The next prime is 1244625493. The reversal of 1244625472 is 2745264421.

It can be written as a sum of positive squares in 2 ways, for example, as 594579456 + 650046016 = 24384^2 + 25496^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128529 + ... + 137872.

Almost surely, 2^1244625472 is an apocalyptic number.

It is an amenable number.

1244625472 is an abundant number, since it is smaller than the sum of its proper divisors (1259020524).

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

1244625472 is an equidigital number, since it uses as much as digits as its factorization.

1244625472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266486 (or 266476 counting only the distinct ones).

The product of its digits is 107520, while the sum is 37.

The square root of 1244625472 is about 35279.2498786468. The cubic root of 1244625472 is about 1075.6712510787.

Adding to 1244625472 its reverse (2745264421), we get a palindrome (3989889893).

The spelling of 1244625472 in words is "one billion, two hundred forty-four million, six hundred twenty-five thousand, four hundred seventy-two".