2199040564 has 12 divisors (see below), whose sum is σ = 4398081184. Its totient is φ = 942445944.

The previous prime is 2199040561. The next prime is 2199040619. The reversal of 2199040564 is 4650409912.

2199040564 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2199040561) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39268554 + ... + 39268609.

Almost surely, 2^2199040564 is an apocalyptic number.

It is an amenable number.

2199040564 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

2199040564 is a wasteful number, since it uses less digits than its factorization.

2199040564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78537174 (or 78537172 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 2199040564 is about 46893.9288607811. The cubic root of 2199040564 is about 1300.4023535641.

The spelling of 2199040564 in words is "two billion, one hundred ninety-nine million, forty thousand, five hundred sixty-four".