30338838 has 24 divisors (see below), whose sum is σ = 66814176. Its totient is φ = 9946800.

The previous prime is 30338831. The next prime is 30338849. The reversal of 30338838 is 83883303.

30338838 = 1047² + 1048² + ... + 1073².

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30338831) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12718 + ... + 14913.

It is an arithmetic number, because the mean of its divisors is an integer number (2783924).

Almost surely, 2^30338838 is an apocalyptic number.

30338838 is an abundant number, since it is smaller than the sum of its proper divisors (36475338).

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

30338838 is a wasteful number, since it uses less digits than its factorization.

30338838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27700 (or 27697 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 30338838 is about 5508.0702609898. The cubic root of 30338838 is about 311.8887053735. Note that the first 3 decimals are identical.

The spelling of 30338838 in words is "thirty million, three hundred thirty-eight thousand, eight hundred thirty-eight".