1257674484 has 72 divisors (see below), whose sum is σ = 3415414464. Its totient is φ = 358688000.

The previous prime is 1257674479. The next prime is 1257674497. The reversal of 1257674484 is 4844767521.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 792 + ... + 50159.

It is an arithmetic number, because the mean of its divisors is an integer number (47436312).

Almost surely, 2^1257674484 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 1257674484, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1707707232).

1257674484 is an abundant number, since it is smaller than the sum of its proper divisors (2157739980).

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

1257674484 is a wasteful number, since it uses less digits than its factorization.

1257674484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50997 (or 50984 counting only the distinct ones).

The product of its digits is 1505280, while the sum is 48.

The square root of 1257674484 is about 35463.7065744685. The cubic root of 1257674484 is about 1079.4174052606.

The spelling of 1257674484 in words is "one billion, two hundred fifty-seven million, six hundred seventy-four thousand, four hundred eighty-four".