30252432 has 80 divisors (see below), whose sum is σ = 89994240. Its totient is φ = 8578176.

The previous prime is 30252413. The next prime is 30252433. The reversal of 30252432 is 23425203.

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 = 30252399 and 30252408.

It is not an unprimeable number, because it can be changed into a prime (30252433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59893 + ... + 60395.

It is an arithmetic number, because the mean of its divisors is an integer number (1124928).

Almost surely, 2^30252432 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 30252432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44997120).

30252432 is an abundant number, since it is smaller than the sum of its proper divisors (59741808).

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

30252432 is a wasteful number, since it uses less digits than its factorization.

30252432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 700 (or 694 counting only the distinct ones).

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

The square root of 30252432 is about 5500.2210864655. The cubic root of 30252432 is about 311.5923341022.

Adding to 30252432 its reverse (23425203), we get a palindrome (53677635).

The spelling of 30252432 in words is "thirty million, two hundred fifty-two thousand, four hundred thirty-two".