2194536090 has 32 divisors (see below), whose sum is σ = 5345501760. Its totient is φ = 576474624.

The previous prime is 2194536041. The next prime is 2194536139. The reversal of 2194536090 is 906354912.

It is an interprime number because it is at equal distance from previous prime (2194536041) and next prime (2194536139).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 543895 + ... + 547914.

It is an arithmetic number, because the mean of its divisors is an integer number (167046930).

Almost surely, 2^2194536090 is an apocalyptic number.

2194536090 is an abundant number, since it is smaller than the sum of its proper divisors (3150965670).

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

2194536090 is a wasteful number, since it uses less digits than its factorization.

2194536090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091886.

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 2194536090 is about 46845.8759124002. The cubic root of 2194536090 is about 1299.5138399100.

The spelling of 2194536090 in words is "two billion, one hundred ninety-four million, five hundred thirty-six thousand, ninety".