1253032644 has 24 divisors (see below), whose sum is σ = 2925353088. Its totient is φ = 417447520.

The previous prime is 1253032633. The next prime is 1253032661. The reversal of 1253032644 is 4462303521.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5292 + ... + 50339.

It is an arithmetic number, because the mean of its divisors is an integer number (121889712).

Almost surely, 2^1253032644 is an apocalyptic number.

It is an amenable number.

1253032644 is an abundant number, since it is smaller than the sum of its proper divisors (1672320444).

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

1253032644 is a wasteful number, since it uses less digits than its factorization.

1253032644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57515 (or 57513 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

The square root of 1253032644 is about 35398.2011407360. The cubic root of 1253032644 is about 1078.0877925845.

The spelling of 1253032644 in words is "one billion, two hundred fifty-three million, thirty-two thousand, six hundred forty-four".