1257316352 has 56 divisors (see below), whose sum is σ = 2596115712. Its totient is φ = 608256000.

The previous prime is 1257316349. The next prime is 1257316381. The reversal of 1257316352 is 2536137521.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251477 + ... + 256427.

Almost surely, 2^1257316352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1257316352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298057856).

1257316352 is an abundant number, since it is smaller than the sum of its proper divisors (1338799360).

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

1257316352 is an frugal number, since it uses more digits than its factorization.

1257316352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5008 (or 4984 counting only the distinct ones).

The product of its digits is 37800, while the sum is 35.

The square root of 1257316352 is about 35458.6569401606. The cubic root of 1257316352 is about 1079.3149382025.

The spelling of 1257316352 in words is "one billion, two hundred fifty-seven million, three hundred sixteen thousand, three hundred fifty-two".