1180997020 has 48 divisors (see below), whose sum is σ = 2892254400. Its totient is φ = 404910912.

The previous prime is 1180997017. The next prime is 1180997033. The reversal of 1180997020 is 207990811.

It is a super-2 number, since 2×1180997020² = 2789507922497760800, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 79219 + ... + 92938.

It is an arithmetic number, because the mean of its divisors is an integer number (60255300).

Almost surely, 2^1180997020 is an apocalyptic number.

1180997020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1180997020 is an abundant number, since it is smaller than the sum of its proper divisors (1711257380).

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

1180997020 is a wasteful number, since it uses less digits than its factorization.

1180997020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172187 (or 172171 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 37.

The square root of 1180997020 is about 34365.6371976426. The cubic root of 1180997020 is about 1057.0193409031.

The spelling of 1180997020 in words is "one billion, one hundred eighty million, nine hundred ninety-seven thousand, twenty".