2043045399 has 4 divisors (see below), whose sum is σ = 2724060536. Its totient is φ = 1362030264.

The previous prime is 2043045383. The next prime is 2043045409. The reversal of 2043045399 is 9935403402.

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

It is not a de Polignac number, because 2043045399 - 2⁴ = 2043045383 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 (2043045349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340507564 + ... + 340507569.

It is an arithmetic number, because the mean of its divisors is an integer number (681015134).

Almost surely, 2^2043045399 is an apocalyptic number.

2043045399 is a deficient number, since it is larger than the sum of its proper divisors (681015137).

2043045399 is an equidigital number, since it uses as much as digits as its factorization.

2043045399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681015136.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 2043045399 is about 45200.0597234119. The cubic root of 2043045399 is about 1268.8959340530.

The spelling of 2043045399 in words is "two billion, forty-three million, forty-five thousand, three hundred ninety-nine".