30216542 has 8 divisors (see below), whose sum is σ = 45378576. Its totient is φ = 15090352.

The previous prime is 30216509. The next prime is 30216547. The reversal of 30216542 is 24561203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30216547) 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 3 ways as a sum of consecutive naturals, for example, 6743 + ... + 10290.

It is an arithmetic number, because the mean of its divisors is an integer number (5672322).

Almost surely, 2^30216542 is an apocalyptic number.

30216542 is a deficient number, since it is larger than the sum of its proper divisors (15162034).

30216542 is a wasteful number, since it uses less digits than its factorization.

30216542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17922.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 30216542 is about 5496.9575221208. The cubic root of 30216542 is about 311.4690660607.

Adding to 30216542 its reverse (24561203), we get a palindrome (54777745).

The spelling of 30216542 in words is "thirty million, two hundred sixteen thousand, five hundred forty-two".