1322305272 has 48 divisors (see below), whose sum is σ = 3583574280. Its totient is φ = 440481600.

The previous prime is 1322305267. The next prime is 1322305273. The reversal of 1322305272 is 2725032231.

It is a happy number.

1322305272 is a `hidden beast` number, since 132 + 2 + 3 + 0 + 527 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1322305273) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125322 + ... + 135462.

Almost surely, 2^1322305272 is an apocalyptic number.

1322305272 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1322305272 is an abundant number, since it is smaller than the sum of its proper divisors (2261269008).

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

1322305272 is a wasteful number, since it uses less digits than its factorization.

1322305272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11964 (or 11957 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

The square root of 1322305272 is about 36363.5156716179. The cubic root of 1322305272 is about 1097.5995234941.

The spelling of 1322305272 in words is "one billion, three hundred twenty-two million, three hundred five thousand, two hundred seventy-two".