30012132 has 48 divisors (see below), whose sum is σ = 72253440. Its totient is φ = 9690912.

The previous prime is 30012107. The next prime is 30012139. The reversal of 30012132 is 23121003.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30012139) 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, 71419 + ... + 71837.

It is an arithmetic number, because the mean of its divisors is an integer number (1505280).

Almost surely, 2^30012132 is an apocalyptic number.

It is an amenable number.

30012132 is an abundant number, since it is smaller than the sum of its proper divisors (42241308).

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

30012132 is a wasteful number, since it uses less digits than its factorization.

30012132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600 (or 598 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 30012132 is about 5478.3329581178. The cubic root of 30012132 is about 310.7651304447.

Adding to 30012132 its reverse (23121003), we get a palindrome (53133135).

The spelling of 30012132 in words is "thirty million, twelve thousand, one hundred thirty-two".