1321583268 has 24 divisors (see below), whose sum is σ = 3096496480. Its totient is φ = 438698880.

The previous prime is 1321583231. The next prime is 1321583269. The reversal of 1321583268 is 8623851231.

It is not an unprimeable number, because it can be changed into a prime (1321583269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225598 + ... + 231381.

Almost surely, 2^1321583268 is an apocalyptic number.

It is an amenable number.

1321583268 is an abundant number, since it is smaller than the sum of its proper divisors (1774913212).

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

1321583268 is a wasteful number, since it uses less digits than its factorization.

1321583268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457227 (or 457225 counting only the distinct ones).

The product of its digits is 69120, while the sum is 39.

The square root of 1321583268 is about 36353.5867281345. The cubic root of 1321583268 is about 1097.3997170042.

The spelling of 1321583268 in words is "one billion, three hundred twenty-one million, five hundred eighty-three thousand, two hundred sixty-eight".