30338118 has 32 divisors (see below), whose sum is σ = 69746400. Its totient is φ = 9763488.

The previous prime is 30338111. The next prime is 30338131. The reversal of 30338118 is 81183303.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 30338091 and 30338100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30338111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8121 + ... + 11252.

It is an arithmetic number, because the mean of its divisors is an integer number (2179575).

Almost surely, 2^30338118 is an apocalyptic number.

30338118 is an abundant number, since it is smaller than the sum of its proper divisors (39408282).

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

30338118 is a wasteful number, since it uses less digits than its factorization.

30338118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19413 (or 19407 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 30338118 is about 5508.0049019586. The cubic root of 30338118 is about 311.8862381108.

The spelling of 30338118 in words is "thirty million, three hundred thirty-eight thousand, one hundred eighteen".