30693800 has 24 divisors (see below), whose sum is σ = 71363550. Its totient is φ = 12277440.

The previous prime is 30693781. The next prime is 30693809. The reversal of 30693800 is 839603.

It can be written as a sum of positive squares in 3 ways, for example, as 29008996 + 1684804 = 5386^2 + 1298^2 .

It is not an unprimeable number, because it can be changed into a prime (30693809) 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, 76535 + ... + 76934.

Almost surely, 2^30693800 is an apocalyptic number.

It is an amenable number.

30693800 is an abundant number, since it is smaller than the sum of its proper divisors (40669750).

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

30693800 is a wasteful number, since it uses less digits than its factorization.

30693800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153485 (or 153476 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 30693800 is about 5540.1985523986. The cubic root of 30693800 is about 313.1003499174.

The spelling of 30693800 in words is "thirty million, six hundred ninety-three thousand, eight hundred".