1323772456 has 32 divisors (see below), whose sum is σ = 2631493440. Its totient is φ = 622142208.

The previous prime is 1323772397. The next prime is 1323772469. The reversal of 1323772456 is 6542773231.

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, 106015 + ... + 117841.

It is an arithmetic number, because the mean of its divisors is an integer number (82234170).

Almost surely, 2^1323772456 is an apocalyptic number.

It is an amenable number.

1323772456 is a deficient number, since it is larger than the sum of its proper divisors (1307720984).

1323772456 is a wasteful number, since it uses less digits than its factorization.

1323772456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12673 (or 12669 counting only the distinct ones).

The product of its digits is 211680, while the sum is 40.

The square root of 1323772456 is about 36383.6839256280. The cubic root of 1323772456 is about 1098.0053262117.

The spelling of 1323772456 in words is "one billion, three hundred twenty-three million, seven hundred seventy-two thousand, four hundred fifty-six".