30272218 has 8 divisors (see below), whose sum is σ = 45599040. Its totient is φ = 15072540.

The previous prime is 30272191. The next prime is 30272219. The reversal of 30272218 is 81227203.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 30272192 and 30272201.

It is not an unprimeable number, because it can be changed into a prime (30272219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31188 + ... + 32143.

It is an arithmetic number, because the mean of its divisors is an integer number (5699880).

Almost surely, 2^30272218 is an apocalyptic number.

30272218 is a deficient number, since it is larger than the sum of its proper divisors (15326822).

30272218 is a wasteful number, since it uses less digits than its factorization.

30272218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63572.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 30272218 is about 5502.0194474393. The cubic root of 30272218 is about 311.6602495493.

The spelling of 30272218 in words is "thirty million, two hundred seventy-two thousand, two hundred eighteen".