30212432 has 80 divisors (see below), whose sum is σ = 66960000. Its totient is φ = 13128192.

The previous prime is 30212431. The next prime is 30212453. The reversal of 30212432 is 23421203.

It is a self number, because there is not a number n which added to its sum of digits gives 30212432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30212431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 202694 + ... + 202842.

It is an arithmetic number, because the mean of its divisors is an integer number (837000).

Almost surely, 2^30212432 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 30212432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33480000).

30212432 is an abundant number, since it is smaller than the sum of its proper divisors (36747568).

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

30212432 is a wasteful number, since it uses less digits than its factorization.

30212432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228 (or 222 counting only the distinct ones).

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

The square root of 30212432 is about 5496.5836662422. The cubic root of 30212432 is about 311.4549435986.

Adding to 30212432 its reverse (23421203), we get a palindrome (53633635).

The spelling of 30212432 in words is "thirty million, two hundred twelve thousand, four hundred thirty-two".