30306800 has 30 divisors (see below), whose sum is σ = 72813048. Its totient is φ = 12122560.

The previous prime is 30306799. The next prime is 30306803. The reversal of 30306800 is 860303.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30306803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37484 + ... + 38283.

Almost surely, 2^30306800 is an apocalyptic number.

It is an amenable number.

30306800 is an abundant number, since it is smaller than the sum of its proper divisors (42506248).

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

30306800 is a wasteful number, since it uses less digits than its factorization.

30306800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75785 (or 75774 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 30306800 is about 5505.1612147148. The cubic root of 30306800 is about 311.7788812407.

The spelling of 30306800 in words is "thirty million, three hundred six thousand, eight hundred".