1170990 has 32 divisors (see below), whose sum is σ = 3123360. Its totient is φ = 312192.

The previous prime is 1170979. The next prime is 1171031. The reversal of 1170990 is 990711.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

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, 1899 + ... + 2438.

It is an arithmetic number, because the mean of its divisors is an integer number (97605).

2^1170990 is an apocalyptic number.

1170990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1170990 is an abundant number, since it is smaller than the sum of its proper divisors (1952370).

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

1170990 is a wasteful number, since it uses less digits than its factorization.

1170990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4353 (or 4347 counting only the distinct ones).

The product of its (nonzero) digits is 567, while the sum is 27.

The square root of 1170990 is about 1082.1229135362. The cubic root of 1170990 is about 105.4025364644.

The spelling of 1170990 in words is "one million, one hundred seventy thousand, nine hundred ninety".