1231374944 has 24 divisors (see below), whose sum is σ = 2426646600. Its totient is φ = 615083776.

The previous prime is 1231374919. The next prime is 1231374953. The reversal of 1231374944 is 4494731321.

It is a super-2 number, since 2×1231374944² = 3032568505422006272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231374898 and 1231374907.

It is a congruent number.

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, 15227 + ... + 51909.

It is an arithmetic number, because the mean of its divisors is an integer number (101110275).

Almost surely, 2^1231374944 is an apocalyptic number.

It is an amenable number.

1231374944 is a deficient number, since it is larger than the sum of its proper divisors (1195271656).

1231374944 is a wasteful number, since it uses less digits than its factorization.

1231374944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37742 (or 37734 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 1231374944 is about 35090.9524521635. The cubic root of 1231374944 is about 1071.8403545585.

The spelling of 1231374944 in words is "one billion, two hundred thirty-one million, three hundred seventy-four thousand, nine hundred forty-four".