1170939980 has 48 divisors (see below), whose sum is σ = 2958170880. Its totient is φ = 380334528.

The previous prime is 1170939977. The next prime is 1170939997. The reversal of 1170939980 is 899390711.

It is a happy number.

It is a super-2 number, since 2×1170939980² = 2742200873524800800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217442 + ... + 222761.

It is an arithmetic number, because the mean of its divisors is an integer number (61628560).

Almost surely, 2^1170939980 is an apocalyptic number.

1170939980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1170939980 is an abundant number, since it is smaller than the sum of its proper divisors (1787230900).

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

1170939980 is a wasteful number, since it uses less digits than its factorization.

1170939980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440238 (or 440236 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 47.

The square root of 1170939980 is about 34219.0002776235. Note that the first 3 decimals coincide. The cubic root of 1170939980 is about 1054.0103565169.

The spelling of 1170939980 in words is "one billion, one hundred seventy million, nine hundred thirty-nine thousand, nine hundred eighty".