1252651338 has 32 divisors (see below), whose sum is σ = 2795644800. Its totient is φ = 415754208.

The previous prime is 1252651327. The next prime is 1252651357. The reversal of 1252651338 is 8331562521.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37198 + ... + 62361.

It is an arithmetic number, because the mean of its divisors is an integer number (87363900).

Almost surely, 2^1252651338 is an apocalyptic number.

1252651338 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1252651338 is an abundant number, since it is smaller than the sum of its proper divisors (1542993462).

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

1252651338 is a wasteful number, since it uses less digits than its factorization.

1252651338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99803 (or 99797 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 1252651338 is about 35392.8147792741. The cubic root of 1252651338 is about 1077.9784251094.

The spelling of 1252651338 in words is "one billion, two hundred fifty-two million, six hundred fifty-one thousand, three hundred thirty-eight".