2042031399 has 4 divisors (see below), whose sum is σ = 2722708536. Its totient is φ = 1361354264.

The previous prime is 2042031377. The next prime is 2042031401. The reversal of 2042031399 is 9931302402.

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 2042031399 - 2⁵ = 2042031367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042031599) 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, 340338564 + ... + 340338569.

It is an arithmetic number, because the mean of its divisors is an integer number (680677134).

Almost surely, 2^2042031399 is an apocalyptic number.

2042031399 is a deficient number, since it is larger than the sum of its proper divisors (680677137).

2042031399 is an equidigital number, since it uses as much as digits as its factorization.

2042031399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680677136.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 2042031399 is about 45188.8415319534. The cubic root of 2042031399 is about 1268.6859740588.

The spelling of 2042031399 in words is "two billion, forty-two million, thirty-one thousand, three hundred ninety-nine".