354344489 has 2 divisors, whose sum is σ = 354344490. Its totient is φ = 354344488.

The previous prime is 354344453. The next prime is 354344587. The reversal of 354344489 is 984443453.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 349054489 + 5290000 = 18683^2 + 2300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-354344489 is a prime.

It is a super-2 number, since 2×354344489² = 251120033769342242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (354344989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177172244 + 177172245.

It is an arithmetic number, because the mean of its divisors is an integer number (177172245).

Almost surely, 2^354344489 is an apocalyptic number.

It is an amenable number.

354344489 is a deficient number, since it is larger than the sum of its proper divisors (1).

354344489 is an equidigital number, since it uses as much as digits as its factorization.

354344489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 44.

The square root of 354344489 is about 18824.0401880149. The cubic root of 354344489 is about 707.6337872496.

The spelling of 354344489 in words is "three hundred fifty-four million, three hundred forty-four thousand, four hundred eighty-nine".