30404223 has 12 divisors (see below), whose sum is σ = 43968808. Its totient is φ = 20245680.

The previous prime is 30404203. The next prime is 30404239. The reversal of 30404223 is 32240403.

It is not a de Polignac number, because 30404223 - 2¹² = 30400127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30404196 and 30404205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30404203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9768 + ... + 12498.

Almost surely, 2^30404223 is an apocalyptic number.

30404223 is a deficient number, since it is larger than the sum of its proper divisors (13564585).

30404223 is a wasteful number, since it uses less digits than its factorization.

30404223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3974 (or 3971 counting only the distinct ones).

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

The square root of 30404223 is about 5514.0024483128. The cubic root of 30404223 is about 312.1126011225.

Adding to 30404223 its reverse (32240403), we get a palindrome (62644626).

The spelling of 30404223 in words is "thirty million, four hundred four thousand, two hundred twenty-three".