2091056394 has 32 divisors (see below), whose sum is σ = 4794955776. Its totient is φ = 595519920.

The previous prime is 2091056371. The next prime is 2091056411. The reversal of 2091056394 is 4936501902.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 66982 + ... + 93105.

It is an arithmetic number, because the mean of its divisors is an integer number (149842368).

Almost surely, 2^2091056394 is an apocalyptic number.

2091056394 is an abundant number, since it is smaller than the sum of its proper divisors (2703899382).

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

2091056394 is a wasteful number, since it uses less digits than its factorization.

2091056394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160410.

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

The square root of 2091056394 is about 45728.0700882948. The cubic root of 2091056394 is about 1278.7586422917.

The spelling of 2091056394 in words is "two billion, ninety-one million, fifty-six thousand, three hundred ninety-four".