1323640424 has 16 divisors (see below), whose sum is σ = 2482293600. Its totient is φ = 661695472.

The previous prime is 1323640411. The next prime is 1323640429. The reversal of 1323640424 is 4240463231.

It is not an unprimeable number, because it can be changed into a prime (1323640429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42029 + ... + 66435.

It is an arithmetic number, because the mean of its divisors is an integer number (155143350).

Almost surely, 2^1323640424 is an apocalyptic number.

It is an amenable number.

1323640424 is a deficient number, since it is larger than the sum of its proper divisors (1158653176).

1323640424 is a wasteful number, since it uses less digits than its factorization.

1323640424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31192 (or 31188 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

The square root of 1323640424 is about 36381.8694406981. The cubic root of 1323640424 is about 1097.9688202753.

The spelling of 1323640424 in words is "one billion, three hundred twenty-three million, six hundred forty thousand, four hundred twenty-four".