1322563956 has 48 divisors (see below), whose sum is σ = 3529236480. Its totient is φ = 377618400.

The previous prime is 1322563939. The next prime is 1322564017. The reversal of 1322563956 is 6593652231.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143281 + ... + 152231.

It is an arithmetic number, because the mean of its divisors is an integer number (73525760).

Almost surely, 2^1322563956 is an apocalyptic number.

It is an amenable number.

1322563956 is an abundant number, since it is smaller than the sum of its proper divisors (2206672524).

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

1322563956 is a wasteful number, since it uses less digits than its factorization.

1322563956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10724 (or 10722 counting only the distinct ones).

The product of its digits is 291600, while the sum is 42.

The square root of 1322563956 is about 36367.0724144796. The cubic root of 1322563956 is about 1097.6710936849.

The spelling of 1322563956 in words is "one billion, three hundred twenty-two million, five hundred sixty-three thousand, nine hundred fifty-six".