1323393688 has 64 divisors (see below), whose sum is σ = 2637619200. Its totient is φ = 621223680.

The previous prime is 1323393677. The next prime is 1323393697. The reversal of 1323393688 is 8863933231.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3455145 + ... + 3455527.

It is an arithmetic number, because the mean of its divisors is an integer number (41212800).

Almost surely, 2^1323393688 is an apocalyptic number.

It is an amenable number.

1323393688 is a deficient number, since it is larger than the sum of its proper divisors (1314225512).

1323393688 is a wasteful number, since it uses less digits than its factorization.

1323393688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 708 counting only the distinct ones).

The product of its digits is 559872, while the sum is 46.

The square root of 1323393688 is about 36378.4783629002. The cubic root of 1323393688 is about 1097.9005929671.

The spelling of 1323393688 in words is "one billion, three hundred twenty-three million, three hundred ninety-three thousand, six hundred eighty-eight".