30349816 has 48 divisors (see below), whose sum is σ = 66792600. Its totient is φ = 12890304.

The previous prime is 30349807. The next prime is 30349831. The reversal of 30349816 is 61894303.

It is a super-2 number, since 2×30349816² = 1842222662467712, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54210 + ... + 54766.

Almost surely, 2^30349816 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 30349816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33396300).

30349816 is an abundant number, since it is smaller than the sum of its proper divisors (36442784).

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

30349816 is a wasteful number, since it uses less digits than its factorization.

30349816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 30349816 is about 5509.0667086177. The cubic root of 30349816 is about 311.9263194411.

The spelling of 30349816 in words is "thirty million, three hundred forty-nine thousand, eight hundred sixteen".