1253053940 has 24 divisors (see below), whose sum is σ = 2637116160. Its totient is φ = 500135328.

The previous prime is 1253053913. The next prime is 1253053973. The reversal of 1253053940 is 493503521.

It is a junction number, because it is equal to n+sod(n) for n = 1253053897 and 1253053906.

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, 58400 + ... + 76919.

It is an arithmetic number, because the mean of its divisors is an integer number (109879840).

Almost surely, 2^1253053940 is an apocalyptic number.

1253053940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1253053940 is an abundant number, since it is smaller than the sum of its proper divisors (1384062220).

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

1253053940 is a wasteful number, since it uses less digits than its factorization.

1253053940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135791 (or 135789 counting only the distinct ones).

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1253053940 is about 35398.5019457039. The cubic root of 1253053940 is about 1078.0939001209.

The spelling of 1253053940 in words is "one billion, two hundred fifty-three million, fifty-three thousand, nine hundred forty".