2099721404 has 12 divisors (see below), whose sum is σ = 4008559128. Its totient is φ = 954418800.

The previous prime is 2099721383. The next prime is 2099721431. The reversal of 2099721404 is 4041279902.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23860427 + ... + 23860514.

It is an arithmetic number, because the mean of its divisors is an integer number (334046594).

Almost surely, 2^2099721404 is an apocalyptic number.

It is an amenable number.

2099721404 is a deficient number, since it is larger than the sum of its proper divisors (1908837724).

2099721404 is a wasteful number, since it uses less digits than its factorization.

2099721404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47720956 (or 47720954 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 2099721404 is about 45822.7171171680. The cubic root of 2099721404 is about 1280.5225332397.

The spelling of 2099721404 in words is "two billion, ninety-nine million, seven hundred twenty-one thousand, four hundred four".