30249216 has 108 divisors (see below), whose sum is σ = 91939120. Its totient is φ = 9538560.

The previous prime is 30249199. The next prime is 30249217. The reversal of 30249216 is 61294203.

It is a super-2 number, since 2×30249216² = 1830030137229312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30249216.

It is not an unprimeable number, because it can be changed into a prime (30249217) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 43431 + ... + 44121.

Almost surely, 2^30249216 is an apocalyptic number.

30249216 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30249216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45969560).

30249216 is an abundant number, since it is smaller than the sum of its proper divisors (61689904).

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

30249216 is a wasteful number, since it uses less digits than its factorization.

30249216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 732 (or 715 counting only the distinct ones).

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

The square root of 30249216 is about 5499.9287268109. The cubic root of 30249216 is about 311.5812923843.

The spelling of 30249216 in words is "thirty million, two hundred forty-nine thousand, two hundred sixteen".