344432009 has 2 divisors, whose sum is σ = 344432010. Its totient is φ = 344432008.

The previous prime is 344432003. The next prime is 344432051. The reversal of 344432009 is 900234443.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 249798025 + 94633984 = 15805^2 + 9728^2 .

It is a cyclic number.

It is not a de Polignac number, because 344432009 - 2²⁰ = 343383433 is a prime.

It is not a weakly prime, because it can be changed into another prime (344432003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172216004 + 172216005.

It is an arithmetic number, because the mean of its divisors is an integer number (172216005).

Almost surely, 2^344432009 is an apocalyptic number.

It is an amenable number.

344432009 is a deficient number, since it is larger than the sum of its proper divisors (1).

344432009 is an equidigital number, since it uses as much as digits as its factorization.

344432009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 29.

The square root of 344432009 is about 18558.8795189796. The cubic root of 344432009 is about 700.9728032330.

It can be divided in two parts, 3444 and 32009, that added together give a palindrome (35453).

The spelling of 344432009 in words is "three hundred forty-four million, four hundred thirty-two thousand, nine".