30304431 has 6 divisors (see below), whose sum is σ = 43773080. Its totient is φ = 20202948.

The previous prime is 30304429. The next prime is 30304451. The reversal of 30304431 is 13440303.

It is not a de Polignac number, because 30304431 - 2¹ = 30304429 is a prime.

It is a super-2 number, since 2×30304431² = 1836717076467522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30304451) 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, 1683571 + ... + 1683588.

Almost surely, 2^30304431 is an apocalyptic number.

30304431 is a deficient number, since it is larger than the sum of its proper divisors (13468649).

30304431 is a wasteful number, since it uses less digits than its factorization.

30304431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3367165 (or 3367162 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30304431 is about 5504.9460487819. The cubic root of 30304431 is about 311.7707573938.

Adding to 30304431 its reverse (13440303), we get a palindrome (43744734).

The spelling of 30304431 in words is "thirty million, three hundred four thousand, four hundred thirty-one".