1080117972 has 36 divisors (see below), whose sum is σ = 2775062836. Its totient is φ = 354136320.

The previous prime is 1080117953. The next prime is 1080117977. The reversal of 1080117972 is 2797110801.

It can be written as a sum of positive squares in 2 ways, for example, as 325297296 + 754820676 = 18036^2 + 27474^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1080117977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 243733 + ... + 248124.

Almost surely, 2^1080117972 is an apocalyptic number.

1080117972 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1080117972 is an abundant number, since it is smaller than the sum of its proper divisors (1694944864).

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

1080117972 is a wasteful number, since it uses less digits than its factorization.

1080117972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491928 (or 491923 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 36.

The square root of 1080117972 is about 32865.1482881182. The cubic root of 1080117972 is about 1026.0229239204.

The spelling of 1080117972 in words is "one billion, eighty million, one hundred seventeen thousand, nine hundred seventy-two".