30340816 has 80 divisors (see below), whose sum is σ = 67995648. Its totient is φ = 12988800.

The previous prime is 30340789. The next prime is 30340823. The reversal of 30340816 is 61804303.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365511 + ... + 365593.

Almost surely, 2^30340816 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 30340816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33997824).

30340816 is an abundant number, since it is smaller than the sum of its proper divisors (37654832).

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

30340816 is a wasteful number, since it uses less digits than its factorization.

30340816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200 (or 194 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 30340816 is about 5508.2498127808. The cubic root of 30340816 is about 311.8954832913.

The spelling of 30340816 in words is "thirty million, three hundred forty thousand, eight hundred sixteen".