1321772466 has 32 divisors (see below), whose sum is σ = 3036866688. Its totient is φ = 375690240.

The previous prime is 1321772443. The next prime is 1321772483. The reversal of 1321772466 is 6642771231.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73425 + ... + 89636.

It is an arithmetic number, because the mean of its divisors is an integer number (94902084).

Almost surely, 2^1321772466 is an apocalyptic number.

1321772466 is an abundant number, since it is smaller than the sum of its proper divisors (1715094222).

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

1321772466 is a wasteful number, since it uses less digits than its factorization.

1321772466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163266.

The product of its digits is 84672, while the sum is 39.

The square root of 1321772466 is about 36356.1888266633. The cubic root of 1321772466 is about 1097.4520824585.

The spelling of 1321772466 in words is "one billion, three hundred twenty-one million, seven hundred seventy-two thousand, four hundred sixty-six".