303430349 has 2 divisors, whose sum is σ = 303430350. Its totient is φ = 303430348.

The previous prime is 303430319. The next prime is 303430367. The reversal of 303430349 is 943034303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 256576324 + 46854025 = 16018^2 + 6845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-303430349 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (303430319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 151715174 + 151715175.

It is an arithmetic number, because the mean of its divisors is an integer number (151715175).

Almost surely, 2^303430349 is an apocalyptic number.

It is an amenable number.

303430349 is a deficient number, since it is larger than the sum of its proper divisors (1).

303430349 is an equidigital number, since it uses as much as digits as its factorization.

303430349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 29.

The square root of 303430349 is about 17419.2522514602. The cubic root of 303430349 is about 671.9748291368.

The spelling of 303430349 in words is "three hundred three million, four hundred thirty thousand, three hundred forty-nine".