1318090 has 16 divisors (see below), whose sum is σ = 2400840. Its totient is φ = 520960.

The previous prime is 1318073. The next prime is 1318099. The reversal of 1318090 is 908131.

It can be written as a sum of positive squares in 4 ways, for example, as 815409 + 502681 = 903^2 + 709^2 .

It is a super-2 number, since 2×1318090² = 3474722496200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1318099) 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, 150 + ... + 1630.

2^1318090 is an apocalyptic number.

1318090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1318090 is a deficient number, since it is larger than the sum of its proper divisors (1082750).

1318090 is a wasteful number, since it uses less digits than its factorization.

1318090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1577.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 1318090 is about 1148.0810075948. The cubic root of 1318090 is about 109.6431965164.

The spelling of 1318090 in words is "one million, three hundred eighteen thousand, ninety".