34440431 has 4 divisors (see below), whose sum is σ = 34452792. Its totient is φ = 34428072.

The previous prime is 34440421. The next prime is 34440437. The reversal of 34440431 is 13404443.

34440431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34440431 is a prime.

It is a super-2 number, since 2×34440431² = 2372286574931522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34440397 and 34440406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34440437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185 + ... + 8301.

It is an arithmetic number, because the mean of its divisors is an integer number (8613198).

Almost surely, 2^34440431 is an apocalyptic number.

34440431 is a deficient number, since it is larger than the sum of its proper divisors (12361).

34440431 is an equidigital number, since it uses as much as digits as its factorization.

34440431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12360.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 34440431 is about 5868.5970214354. The cubic root of 34440431 is about 325.3540315605.

Adding to 34440431 its reverse (13404443), we get a palindrome (47844874).

The spelling of 34440431 in words is "thirty-four million, four hundred forty thousand, four hundred thirty-one".