2090196640 has 48 divisors (see below), whose sum is σ = 5643533952. Its totient is φ = 716638464.

The previous prime is 2090196629. The next prime is 2090196649. The reversal of 2090196640 is 466910902.

It is a self number, because there is not a number n which added to its sum of digits gives 2090196640.

It is not an unprimeable number, because it can be changed into a prime (2090196649) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 932004 + ... + 934243.

It is an arithmetic number, because the mean of its divisors is an integer number (117573624).

Almost surely, 2^2090196640 is an apocalyptic number.

2090196640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2090196640 is an abundant number, since it is smaller than the sum of its proper divisors (3553337312).

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

2090196640 is a wasteful number, since it uses less digits than its factorization.

2090196640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1866269 (or 1866261 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 2090196640 is about 45718.6683970564. The cubic root of 2090196640 is about 1278.5833610999.

The spelling of 2090196640 in words is "two billion, ninety million, one hundred ninety-six thousand, six hundred forty".