1090988 has 12 divisors (see below), whose sum is σ = 1917552. Its totient is φ = 543120.

The previous prime is 1090979. The next prime is 1090997. The reversal of 1090988 is 8890901.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1090979) and next prime (1090997).

It is a super-2 number, since 2×1090988² = 2380509632288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 806 + ... + 1682.

It is an arithmetic number, because the mean of its divisors is an integer number (159796).

2^1090988 is an apocalyptic number.

It is an amenable number.

1090988 is a deficient number, since it is larger than the sum of its proper divisors (826564).

1090988 is a wasteful number, since it uses less digits than its factorization.

1090988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 35.

The square root of 1090988 is about 1044.5037099025. The cubic root of 1090988 is about 102.9453318467.

The spelling of 1090988 in words is "one million, ninety thousand, nine hundred eighty-eight".