1257023044 has 12 divisors (see below), whose sum is σ = 2329189884. Its totient is φ = 591540224.

The previous prime is 1257023029. The next prime is 1257023051. The reversal of 1257023044 is 4403207521.

It can be written as a sum of positive squares in 2 ways, for example, as 565964100 + 691058944 = 23790^2 + 26288^2 .

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, 9242749 + ... + 9242884.

It is an arithmetic number, because the mean of its divisors is an integer number (194099157).

Almost surely, 2^1257023044 is an apocalyptic number.

It is an amenable number.

1257023044 is a deficient number, since it is larger than the sum of its proper divisors (1072166840).

1257023044 is a wasteful number, since it uses less digits than its factorization.

1257023044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18485654 (or 18485652 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 28.

The square root of 1257023044 is about 35454.5207836744. The cubic root of 1257023044 is about 1079.2310037906.

The spelling of 1257023044 in words is "one billion, two hundred fifty-seven million, twenty-three thousand, forty-four".