30504216 has 32 divisors (see below), whose sum is σ = 77122800. Its totient is φ = 10053120.

The previous prime is 30504211. The next prime is 30504223. The reversal of 30504216 is 61240503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 30504192 and 30504201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30504211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5005 + ... + 9276.

Almost surely, 2^30504216 is an apocalyptic number.

It is an amenable number.

30504216 is an abundant number, since it is smaller than the sum of its proper divisors (46618584).

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

30504216 is a wasteful number, since it uses less digits than its factorization.

30504216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14379 (or 14375 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 30504216 is about 5523.0621941094. The cubic root of 30504216 is about 312.4543839550.

Adding to 30504216 its reverse (61240503), we get a palindrome (91744719).

The spelling of 30504216 in words is "thirty million, five hundred four thousand, two hundred sixteen".