1180990 has 16 divisors (see below), whose sum is σ = 2251152. Its totient is φ = 444544.

The previous prime is 1180987. The next prime is 1180997. The reversal of 1180990 is 990811.

1180990 = 484² + 485² + ... + 488².

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1180997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3304 + ... + 3643.

It is an arithmetic number, because the mean of its divisors is an integer number (140697).

2^1180990 is an apocalyptic number.

1180990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1180990 is a deficient number, since it is larger than the sum of its proper divisors (1070162).

1180990 is a wasteful number, since it uses less digits than its factorization.

1180990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6971.

The product of its (nonzero) digits is 648, while the sum is 28.

The square root of 1180990 is about 1086.7336380181. The cubic root of 1180990 is about 105.7017246545.

The spelling of 1180990 in words is "one million, one hundred eighty thousand, nine hundred ninety".