1180280990 has 32 divisors (see below), whose sum is σ = 2429706240. Its totient is φ = 404384544.

The previous prime is 1180280987. The next prime is 1180280993. The reversal of 1180280990 is 990820811.

It is an interprime number because it is at equal distance from previous prime (1180280987) and next prime (1180280993).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180280993) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111341 + ... + 121479.

It is an arithmetic number, because the mean of its divisors is an integer number (75928320).

Almost surely, 2^1180280990 is an apocalyptic number.

1180280990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1180280990 is an abundant number, since it is smaller than the sum of its proper divisors (1249425250).

1180280990 is a wasteful number, since it uses less digits than its factorization.

1180280990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11816.

The product of its (nonzero) digits is 10368, while the sum is 38.

The square root of 1180280990 is about 34355.2177987566. The cubic root of 1180280990 is about 1056.8056766413.

The spelling of 1180280990 in words is "one billion, one hundred eighty million, two hundred eighty thousand, nine hundred ninety".