30421232 has 20 divisors (see below), whose sum is σ = 60974520. Its totient is φ = 14685888.

The previous prime is 30421207. The next prime is 30421247. The reversal of 30421232 is 23212403.

It is a self number, because there is not a number n which added to its sum of digits gives 30421232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32318 + ... + 33245.

It is an arithmetic number, because the mean of its divisors is an integer number (3048726).

Almost surely, 2^30421232 is an apocalyptic number.

It is an amenable number.

30421232 is an abundant number, since it is smaller than the sum of its proper divisors (30553288).

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

30421232 is a wasteful number, since it uses less digits than its factorization.

30421232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65600 (or 65594 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 30421232 is about 5515.5445787338. The cubic root of 30421232 is about 312.1707918722.

Adding to 30421232 its reverse (23212403), we get a palindrome (53633635).

The spelling of 30421232 in words is "thirty million, four hundred twenty-one thousand, two hundred thirty-two".