1313385458 has 32 divisors (see below), whose sum is σ = 2468983680. Its totient is φ = 509045760.

The previous prime is 1313385457. The next prime is 1313385499. The reversal of 1313385458 is 8545833131.

It is a super-2 number, since 2×1313385458² = 3449962722571739528, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1313385457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7628 + ... + 51816.

It is an arithmetic number, because the mean of its divisors is an integer number (77155740).

Almost surely, 2^1313385458 is an apocalyptic number.

1313385458 is a deficient number, since it is larger than the sum of its proper divisors (1155598222).

1313385458 is a wasteful number, since it uses less digits than its factorization.

1313385458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44402.

The product of its digits is 172800, while the sum is 41.

The square root of 1313385458 is about 36240.6602864793. The cubic root of 1313385458 is about 1095.1259442440.

The spelling of 1313385458 in words is "one billion, three hundred thirteen million, three hundred eighty-five thousand, four hundred fifty-eight".