2040431994 has 48 divisors (see below), whose sum is σ = 4583464704. Its totient is φ = 655540800.

The previous prime is 2040431993. The next prime is 2040432029. The reversal of 2040431994 is 4991340402.

It is not an unprimeable number, because it can be changed into a prime (2040431993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 44599 + ... + 77909.

It is an arithmetic number, because the mean of its divisors is an integer number (95488848).

Almost surely, 2^2040431994 is an apocalyptic number.

2040431994 is an abundant number, since it is smaller than the sum of its proper divisors (2543032710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2040431994 is a wasteful number, since it uses less digits than its factorization.

2040431994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33443 (or 33440 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2040431994 is about 45171.1411633578. The cubic root of 2040431994 is about 1268.3546581133.

The spelling of 2040431994 in words is "two billion, forty million, four hundred thirty-one thousand, nine hundred ninety-four".