303430369 has 6 divisors (see below), whose sum is σ = 333522770. Its totient is φ = 275845680.

The previous prime is 303430367. The next prime is 303430429. The reversal of 303430369 is 963034303.

It can be written as a sum of positive squares in only one way, i.e., 234457344 + 68973025 = 15312^2 + 8305^2 .

It is not a de Polignac number, because 303430369 - 2¹ = 303430367 is a prime.

It is a super-2 number, since 2×303430369² = 184139977662952322, which contains 22 as substring.

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

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 303430369.

It is not an unprimeable number, because it can be changed into a prime (303430367) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1253724 + ... + 1253965.

Almost surely, 2^303430369 is an apocalyptic number.

It is an amenable number.

303430369 is a deficient number, since it is larger than the sum of its proper divisors (30092401).

303430369 is a wasteful number, since it uses less digits than its factorization.

303430369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2507711 (or 2507700 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 31.

The square root of 303430369 is about 17419.2528255376. The cubic root of 303430369 is about 671.9748439008.

The spelling of 303430369 in words is "three hundred three million, four hundred thirty thousand, three hundred sixty-nine".