1322739120 has 80 divisors (see below), whose sum is σ = 4104023040. Its totient is φ = 352426752.

The previous prime is 1322739083. The next prime is 1322739133. The reversal of 1322739120 is 219372231.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 485121 + ... + 487839.

It is an arithmetic number, because the mean of its divisors is an integer number (51300288).

Almost surely, 2^1322739120 is an apocalyptic number.

1322739120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1322739120 is an abundant number, since it is smaller than the sum of its proper divisors (2781283920).

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

1322739120 is a wasteful number, since it uses less digits than its factorization.

1322739120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4762 (or 4756 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 30.

The square root of 1322739120 is about 36369.4806121836. The cubic root of 1322739120 is about 1097.7195510697.

The spelling of 1322739120 in words is "one billion, three hundred twenty-two million, seven hundred thirty-nine thousand, one hundred twenty".