1253333920 has 48 divisors (see below), whose sum is σ = 3033236808. Its totient is φ = 489103360.

The previous prime is 1253333909. The next prime is 1253333933. The reversal of 1253333920 is 293333521.

It can be written as a sum of positive squares in 4 ways, for example, as 1041223824 + 212110096 = 32268^2 + 14564^2 .

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, 88969 + ... + 102088.

Almost surely, 2^1253333920 is an apocalyptic number.

1253333920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253333920 is an abundant number, since it is smaller than the sum of its proper divisors (1779902888).

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

1253333920 is a wasteful number, since it uses less digits than its factorization.

1253333920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191113 (or 191105 counting only the distinct ones).

The product of its (nonzero) digits is 14580, while the sum is 31.

The square root of 1253333920 is about 35402.4564119497. The cubic root of 1253333920 is about 1078.1741898946.

The spelling of 1253333920 in words is "one billion, two hundred fifty-three million, three hundred thirty-three thousand, nine hundred twenty".