1393996323 has 16 divisors (see below), whose sum is σ = 1877037056. Its totient is φ = 920172960.

The previous prime is 1393996319. The next prime is 1393996333. The reversal of 1393996323 is 3236993931.

It is a happy number.

It is not a de Polignac number, because 1393996323 - 2² = 1393996319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1393996333) 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, 202740 + ... + 209502.

It is an arithmetic number, because the mean of its divisors is an integer number (117314816).

Almost surely, 2^1393996323 is an apocalyptic number.

1393996323 is a deficient number, since it is larger than the sum of its proper divisors (483040733).

1393996323 is a wasteful number, since it uses less digits than its factorization.

1393996323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7434.

The product of its digits is 708588, while the sum is 48.

The square root of 1393996323 is about 37336.2601635461. The cubic root of 1393996323 is about 1117.0875443366.

The spelling of 1393996323 in words is "one billion, three hundred ninety-three million, nine hundred ninety-six thousand, three hundred twenty-three".