1252893140 has 24 divisors (see below), whose sum is σ = 2635352160. Its totient is φ = 500342688.

The previous prime is 1252893113. The next prime is 1252893181. The reversal of 1252893140 is 413982521.

It is a self number, because there is not a number n which added to its sum of digits gives 1252893140.

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, 38222 + ... + 62981.

It is an arithmetic number, because the mean of its divisors is an integer number (109806340).

Almost surely, 2^1252893140 is an apocalyptic number.

1252893140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1252893140 is an abundant number, since it is smaller than the sum of its proper divisors (1382459020).

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

1252893140 is a wasteful number, since it uses less digits than its factorization.

1252893140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101831 (or 101829 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 1252893140 is about 35396.2305902761. The cubic root of 1252893140 is about 1078.0477821501.

The spelling of 1252893140 in words is "one billion, two hundred fifty-two million, eight hundred ninety-three thousand, one hundred forty".