1180900980 has 288 divisors, whose sum is σ = 4319078400. Its totient is φ = 260789760.

The previous prime is 1180900979. The next prime is 1180900997. The reversal of 1180900980 is 890090811.

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 polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1913632 + ... + 1914248.

It is an arithmetic number, because the mean of its divisors is an integer number (14996800).

Almost surely, 2^1180900980 is an apocalyptic number.

1180900980 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 1180900980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2159539200).

1180900980 is an abundant number, since it is smaller than the sum of its proper divisors (3138177420).

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

1180900980 is a wasteful number, since it uses less digits than its factorization.

1180900980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 684 (or 665 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 1180900980 is about 34364.2398431858. The cubic root of 1180900980 is about 1056.9906874609.

The spelling of 1180900980 in words is "one billion, one hundred eighty million, nine hundred thousand, nine hundred eighty".