2189740090 has 32 divisors (see below), whose sum is σ = 3978253440. Its totient is φ = 867768000.

The previous prime is 2189740057. The next prime is 2189740129. The reversal of 2189740090 is 900479812.

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 15 ways as a sum of consecutive naturals, for example, 630960 + ... + 634420.

It is an arithmetic number, because the mean of its divisors is an integer number (124320420).

Almost surely, 2^2189740090 is an apocalyptic number.

2189740090 is a deficient number, since it is larger than the sum of its proper divisors (1788513350).

2189740090 is a wasteful number, since it uses less digits than its factorization.

2189740090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4038.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 2189740090 is about 46794.6587764031. The cubic root of 2189740090 is about 1298.5664849271.

The spelling of 2189740090 in words is "two billion, one hundred eighty-nine million, seven hundred forty thousand, ninety".