1331422596 has 240 divisors, whose sum is σ = 4254243840. Its totient is φ = 354896640.

The previous prime is 1331422559. The next prime is 1331422621. The reversal of 1331422596 is 6952241331.

1331422596 is a `hidden beast` number, since 1 + 33 + 14 + 22 + 596 = 666.

It is a super-2 number, since 2×1331422596² = 3545372258278758432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1331422596.

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 79 ways as a sum of consecutive naturals, for example, 2038606 + ... + 2039258.

It is an arithmetic number, because the mean of its divisors is an integer number (17726016).

Almost surely, 2^1331422596 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331422596, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2127121920).

1331422596 is an abundant number, since it is smaller than the sum of its proper divisors (2922821244).

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

1331422596 is a wasteful number, since it uses less digits than its factorization.

1331422596 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 736 (or 725 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 1331422596 is about 36488.6639382699. The cubic root of 1331422596 is about 1100.1164053121.

The spelling of 1331422596 in words is "one billion, three hundred thirty-one million, four hundred twenty-two thousand, five hundred ninety-six".