30504432 has 40 divisors (see below), whose sum is σ = 90061696. Its totient is φ = 8715456.

The previous prime is 30504431. The next prime is 30504449. The reversal of 30504432 is 23440503.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 30504399 and 30504408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30504431) 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, 45058 + ... + 45729.

Almost surely, 2^30504432 is an apocalyptic number.

It is an amenable number.

30504432 is an abundant number, since it is smaller than the sum of its proper divisors (59557264).

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

30504432 is a wasteful number, since it uses less digits than its factorization.

30504432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90805 (or 90799 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 30504432 is about 5523.0817484444. The cubic root of 30504432 is about 312.4551214486.

Adding to 30504432 its reverse (23440503), we get a palindrome (53944935).

The spelling of 30504432 in words is "thirty million, five hundred four thousand, four hundred thirty-two".