1457933644 has 24 divisors (see below), whose sum is σ = 2622027968. Its totient is φ = 708808320.

The previous prime is 1457933639. The next prime is 1457933657. The reversal of 1457933644 is 4463397541.

It is a junction number, because it is equal to n+sod(n) for n = 1457933594 and 1457933603.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 399709 + ... + 403339.

Almost surely, 2^1457933644 is an apocalyptic number.

It is an amenable number.

1457933644 is a deficient number, since it is larger than the sum of its proper divisors (1164094324).

1457933644 is a wasteful number, since it uses less digits than its factorization.

1457933644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6385 (or 6383 counting only the distinct ones).

The product of its digits is 1088640, while the sum is 46.

The square root of 1457933644 is about 38182.8972708987. The cubic root of 1457933644 is about 1133.9117423149.

The spelling of 1457933644 in words is "one billion, four hundred fifty-seven million, nine hundred thirty-three thousand, six hundred forty-four".