30440304 has 60 divisors (see below), whose sum is σ = 85868016. Its totient is φ = 10066176.

The previous prime is 30440297. The next prime is 30440341. The reversal of 30440304 is 40304403.

It is a super-2 number, since 2×30440304² = 1853224215224832, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18957 + ... + 20499.

Almost surely, 2^30440304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30440304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42934008).

30440304 is an abundant number, since it is smaller than the sum of its proper divisors (55427712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30440304 is a wasteful number, since it uses less digits than its factorization.

30440304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 30440304 is about 5517.2732395632. The cubic root of 30440304 is about 312.2360147138.

Adding to 30440304 its reverse (40304403), we get a palindrome (70744707).

The spelling of 30440304 in words is "thirty million, four hundred forty thousand, three hundred four".