2120044399 has 16 divisors (see below), whose sum is σ = 2397717504. Its totient is φ = 1857067200.

The previous prime is 2120044397. The next prime is 2120044403. The reversal of 2120044399 is 9934400212.

It is a cyclic number.

It is not a de Polignac number, because 2120044399 - 2¹ = 2120044397 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 (2120044397) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66112 + ... + 92794.

It is an arithmetic number, because the mean of its divisors is an integer number (149857344).

Almost surely, 2^2120044399 is an apocalyptic number.

2120044399 is a deficient number, since it is larger than the sum of its proper divisors (277673105).

2120044399 is a wasteful number, since it uses less digits than its factorization.

2120044399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26958.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 2120044399 is about 46043.9398726912. The cubic root of 2120044399 is about 1284.6406256312.

The spelling of 2120044399 in words is "two billion, one hundred twenty million, forty-four thousand, three hundred ninety-nine".