2104442399 has 4 divisors (see below), whose sum is σ = 2123749320. Its totient is φ = 2085135480.

The previous prime is 2104442387. The next prime is 2104442401. The reversal of 2104442399 is 9932444012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2104442399 - 2⁸ = 2104442143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104432399) 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, 9653297 + ... + 9653514.

It is an arithmetic number, because the mean of its divisors is an integer number (530937330).

Almost surely, 2^2104442399 is an apocalyptic number.

2104442399 is a deficient number, since it is larger than the sum of its proper divisors (19306921).

2104442399 is a wasteful number, since it uses less digits than its factorization.

2104442399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19306920.

The product of its (nonzero) digits is 62208, while the sum is 38.

The square root of 2104442399 is about 45874.2018895152. The cubic root of 2104442399 is about 1281.4815200451.

The spelling of 2104442399 in words is "two billion, one hundred four million, four hundred forty-two thousand, three hundred ninety-nine".