30216132 has 24 divisors (see below), whose sum is σ = 78338400. Its totient is φ = 10072008.

The previous prime is 30216127. The next prime is 30216149. The reversal of 30216132 is 23161203.

30216132 is a `hidden beast` number, since 30 + 21 + 613 + 2 = 666.

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

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 139782 + ... + 139997.

It is an arithmetic number, because the mean of its divisors is an integer number (3264100).

Almost surely, 2^30216132 is an apocalyptic number.

It is an amenable number.

30216132 is an abundant number, since it is smaller than the sum of its proper divisors (48122268).

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

30216132 is a wasteful number, since it uses less digits than its factorization.

30216132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 279792 (or 279784 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 30216132 is about 5496.9202286371. The cubic root of 30216132 is about 311.4676573081.

Adding to 30216132 its reverse (23161203), we get a palindrome (53377335).

The spelling of 30216132 in words is "thirty million, two hundred sixteen thousand, one hundred thirty-two".