1090918194 has 16 divisors (see below), whose sum is σ = 2185086432. Its totient is φ = 363097728.

The previous prime is 1090918183. The next prime is 1090918207. The reversal of 1090918194 is 4918190901.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131044 + ... + 139119.

It is an arithmetic number, because the mean of its divisors is an integer number (136567902).

Almost surely, 2^1090918194 is an apocalyptic number.

1090918194 is an abundant number, since it is smaller than the sum of its proper divisors (1094168238).

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

1090918194 is a wasteful number, since it uses less digits than its factorization.

1090918194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270841.

The product of its (nonzero) digits is 23328, while the sum is 42.

The square root of 1090918194 is about 33029.0507583854. The cubic root of 1090918194 is about 1029.4313617476.

The spelling of 1090918194 in words is "one billion, ninety million, nine hundred eighteen thousand, one hundred ninety-four".