1323329990 has 16 divisors (see below), whose sum is σ = 2404257552. Its totient is φ = 524384544.

The previous prime is 1323329989. The next prime is 1323330011. The reversal of 1323329990 is 999233231.

It is a congruent number.

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, 617309 + ... + 619448.

It is an arithmetic number, because the mean of its divisors is an integer number (150266097).

Almost surely, 2^1323329990 is an apocalyptic number.

1323329990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1323329990 is a deficient number, since it is larger than the sum of its proper divisors (1080927562).

1323329990 is a wasteful number, since it uses less digits than its factorization.

1323329990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1236871.

The product of its (nonzero) digits is 78732, while the sum is 41.

The square root of 1323329990 is about 36377.6028622008. The cubic root of 1323329990 is about 1097.8829778526.

The spelling of 1323329990 in words is "one billion, three hundred twenty-three million, three hundred twenty-nine thousand, nine hundred ninety".