30216492 has 72 divisors (see below), whose sum is σ = 80065440. Its totient is φ = 9596160.

The previous prime is 30216491. The next prime is 30216493. The reversal of 30216492 is 29461203.

It is an interprime number because it is at equal distance from previous prime (30216491) and next prime (30216493).

It is not an unprimeable number, because it can be changed into a prime (30216491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 107392 + ... + 107672.

It is an arithmetic number, because the mean of its divisors is an integer number (1112020).

Almost surely, 2^30216492 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 30216492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40032720).

30216492 is an abundant number, since it is smaller than the sum of its proper divisors (49848948).

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

30216492 is a wasteful number, since it uses less digits than its factorization.

30216492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 423 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 30216492 is about 5496.9529741485. The cubic root of 30216492 is about 311.4688942623.

Adding to 30216492 its reverse (29461203), we get a palindrome (59677695).

The spelling of 30216492 in words is "thirty million, two hundred sixteen thousand, four hundred ninety-two".