1172992320 has 224 divisors, whose sum is σ = 4174540800. Its totient is φ = 310044672.

The previous prime is 1172992307. The next prime is 1172992351. The reversal of 1172992320 is 232992711.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1096746 + ... + 1097814.

Almost surely, 2^1172992320 is an apocalyptic number.

1172992320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1172992320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2087270400).

1172992320 is an abundant number, since it is smaller than the sum of its proper divisors (3001548480).

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

1172992320 is a wasteful number, since it uses less digits than its factorization.

1172992320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222 (or 1206 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1172992320 is about 34248.9754591287. The cubic root of 1172992320 is about 1054.6257951258.

The spelling of 1172992320 in words is "one billion, one hundred seventy-two million, nine hundred ninety-two thousand, three hundred twenty".