1320172176 has 40 divisors (see below), whose sum is σ = 3425366080. Its totient is φ = 438132096.

The previous prime is 1320172171. The next prime is 1320172181. The reversal of 1320172176 is 6712710231.

It is an interprime number because it is at equal distance from previous prime (1320172171) and next prime (1320172181).

It is not an unprimeable number, because it can be changed into a prime (1320172171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49060 + ... + 71043.

It is an arithmetic number, because the mean of its divisors is an integer number (85634152).

Almost surely, 2^1320172176 is an apocalyptic number.

1320172176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1320172176 is an abundant number, since it is smaller than the sum of its proper divisors (2105193904).

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

1320172176 is a wasteful number, since it uses less digits than its factorization.

1320172176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120343 (or 120337 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 1320172176 is about 36334.1736661232. The cubic root of 1320172176 is about 1097.0090029611.

The spelling of 1320172176 in words is "one billion, three hundred twenty million, one hundred seventy-two thousand, one hundred seventy-six".