30036800 has 42 divisors (see below), whose sum is σ = 73913238. Its totient is φ = 12014080.

The previous prime is 30036791. The next prime is 30036817. The reversal of 30036800 is 863003.

It can be written as a sum of positive squares in 3 ways, for example, as 10394176 + 19642624 = 3224^2 + 4432^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7787 + ... + 10986.

It is an arithmetic number, because the mean of its divisors is an integer number (1759839).

Almost surely, 2^30036800 is an apocalyptic number.

It is an amenable number.

30036800 is an abundant number, since it is smaller than the sum of its proper divisors (43876438).

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

30036800 is a wasteful number, since it uses less digits than its factorization.

30036800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18795 (or 18780 counting only the distinct ones).

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

The square root of 30036800 is about 5480.5839104971. The cubic root of 30036800 is about 310.8502499656.

Adding to 30036800 its reverse (863003), we get a palindrome (30899803).

The spelling of 30036800 in words is "thirty million, thirty-six thousand, eight hundred".