30243132 has 60 divisors (see below), whose sum is σ = 79584120. Its totient is φ = 10014624.

The previous prime is 30243127. The next prime is 30243151. The reversal of 30243132 is 23134203.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 86983 + ... + 87329.

It is an arithmetic number, because the mean of its divisors is an integer number (1326402).

Almost surely, 2^30243132 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 30243132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39792060).

30243132 is an abundant number, since it is smaller than the sum of its proper divisors (49340988).

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

30243132 is a wasteful number, since it uses less digits than its factorization.

30243132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632 (or 621 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30243132 is about 5499.3756009205. The cubic root of 30243132 is about 311.5604016204.

Adding to 30243132 its reverse (23134203), we get a palindrome (53377335).

It can be divided in two parts, 302 and 43132, that added together give a palindrome (43434).

The spelling of 30243132 in words is "thirty million, two hundred forty-three thousand, one hundred thirty-two".