4045994231 has 2 divisors, whose sum is σ = 4045994232. Its totient is φ = 4045994230.

The previous prime is 4045994221. The next prime is 4045994263. The reversal of 4045994231 is 1324995404.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4045994231 - 2⁶ = 4045994167 is a prime.

It is a super-2 number, since 2×4045994231² = 32740138634570562722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4045994221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022997115 + 2022997116.

It is an arithmetic number, because the mean of its divisors is an integer number (2022997116).

Almost surely, 2^4045994231 is an apocalyptic number.

4045994231 is a deficient number, since it is larger than the sum of its proper divisors (1).

4045994231 is an equidigital number, since it uses as much as digits as its factorization.

4045994231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 4045994231 is about 63608.1302271966. The cubic root of 4045994231 is about 1593.4621539034.

The spelling of 4045994231 in words is "four billion, forty-five million, nine hundred ninety-four thousand, two hundred thirty-one".