1090190856 has 16 divisors (see below), whose sum is σ = 2725477200. Its totient is φ = 363396944.

The previous prime is 1090190819. The next prime is 1090190879. The reversal of 1090190856 is 6580910901.

It is a super-2 number, since 2×1090190856² = 2377032205012025472, 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, 22712286 + ... + 22712333.

It is an arithmetic number, because the mean of its divisors is an integer number (170342325).

Almost surely, 2^1090190856 is an apocalyptic number.

It is an amenable number.

1090190856 is an abundant number, since it is smaller than the sum of its proper divisors (1635286344).

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

1090190856 is a wasteful number, since it uses less digits than its factorization.

1090190856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45424628 (or 45424624 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 39.

The square root of 1090190856 is about 33018.0383426999. The cubic root of 1090190856 is about 1029.2025297371.

The spelling of 1090190856 in words is "one billion, ninety million, one hundred ninety thousand, eight hundred fifty-six".