1453645868 has 12 divisors (see below), whose sum is σ = 2552009880. Its totient is φ = 724500192.

The previous prime is 1453645867. The next prime is 1453645873. The reversal of 1453645868 is 8685463541.

It is a super-2 number, since 2×1453645868² = 4226172619106946848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1453645867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 579278 + ... + 581781.

It is an arithmetic number, because the mean of its divisors is an integer number (212667490).

Almost surely, 2^1453645868 is an apocalyptic number.

It is an amenable number.

1453645868 is a deficient number, since it is larger than the sum of its proper divisors (1098364012).

1453645868 is a wasteful number, since it uses less digits than its factorization.

1453645868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1161376 (or 1161374 counting only the distinct ones).

The product of its digits is 2764800, while the sum is 50.

The square root of 1453645868 is about 38126.7080666558. The cubic root of 1453645868 is about 1132.7990410817.

The spelling of 1453645868 in words is "one billion, four hundred fifty-three million, six hundred forty-five thousand, eight hundred sixty-eight".