1253489472 has 56 divisors (see below), whose sum is σ = 3685032000. Its totient is φ = 417829248.

The previous prime is 1253489459. The next prime is 1253489491. The reversal of 1253489472 is 2749843521.

1253489472 is a `hidden beast` number, since 125 + 3 + 489 + 47 + 2 = 666.

It is a congruent number.

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, 360972 + ... + 364427.

Almost surely, 2^1253489472 is an apocalyptic number.

1253489472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1253489472 is an abundant number, since it is smaller than the sum of its proper divisors (2431542528).

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

1253489472 is an equidigital number, since it uses as much as digits as its factorization.

1253489472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725420 (or 725404 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 1253489472 is about 35404.6532534920. The cubic root of 1253489472 is about 1078.2187923242.

The spelling of 1253489472 in words is "one billion, two hundred fifty-three million, four hundred eighty-nine thousand, four hundred seventy-two".