1323963642 has 32 divisors (see below), whose sum is σ = 2707576704. Its totient is φ = 431467200.

The previous prime is 1323963629. The next prime is 1323963661. The reversal of 1323963642 is 2463693231.

It is a self number, because there is not a number n which added to its sum of digits gives 1323963642.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50292 + ... + 71952.

It is an arithmetic number, because the mean of its divisors is an integer number (84611772).

Almost surely, 2^1323963642 is an apocalyptic number.

1323963642 is an abundant number, since it is smaller than the sum of its proper divisors (1383613062).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1323963642 is a wasteful number, since it uses less digits than its factorization.

1323963642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21894.

The product of its digits is 139968, while the sum is 39.

The square root of 1323963642 is about 36386.3111897867. The cubic root of 1323963642 is about 1098.0581835187.

The spelling of 1323963642 in words is "one billion, three hundred twenty-three million, nine hundred sixty-three thousand, six hundred forty-two".