30218914 has 16 divisors (see below), whose sum is σ = 49538880. Its totient is φ = 13710960.

The previous prime is 30218887. The next prime is 30218917. The reversal of 30218914 is 41981203.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30218917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17272 + ... + 18940.

It is an arithmetic number, because the mean of its divisors is an integer number (3096180).

Almost surely, 2^30218914 is an apocalyptic number.

30218914 is a deficient number, since it is larger than the sum of its proper divisors (19319966).

30218914 is a wasteful number, since it uses less digits than its factorization.

30218914 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2505.

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 30218914 is about 5497.1732736016. The cubic root of 30218914 is about 311.4772159596.

It can be divided in two parts, 302189 and 14, that added together give a palindrome (302203).

The spelling of 30218914 in words is "thirty million, two hundred eighteen thousand, nine hundred fourteen".