4045638031 has 2 divisors, whose sum is σ = 4045638032. Its totient is φ = 4045638030.

The previous prime is 4045638013. The next prime is 4045638089. The reversal of 4045638031 is 1308365404.

It is a happy number.

4045638031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

Together with previous prime (4045638013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4045638031 - 2⁷ = 4045637903 is a prime.

It is a super-2 number, since 2×4045638031² = 32734374155747113922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4045630031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2022819015 + 2022819016.

It is an arithmetic number, because the mean of its divisors is an integer number (2022819016).

Almost surely, 2^4045638031 is an apocalyptic number.

4045638031 is a deficient number, since it is larger than the sum of its proper divisors (1).

4045638031 is an equidigital number, since it uses as much as digits as its factorization.

4045638031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 4045638031 is about 63605.3302090320. The cubic root of 4045638031 is about 1593.4153909535.

It can be divided in two parts, 40456 and 38031, that added together give a palindrome (78487).

The spelling of 4045638031 in words is "four billion, forty-five million, six hundred thirty-eight thousand, thirty-one".