30228216 has 16 divisors (see below), whose sum is σ = 75570600. Its totient is φ = 10076064.

The previous prime is 30228203. The next prime is 30228241. The reversal of 30228216 is 61282203.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 1259509 = 30228216 / (3 + 0 + 2 + 2 + 8 + 2 + 1 + 6).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 629731 + ... + 629778.

Almost surely, 2^30228216 is an apocalyptic number.

It is an amenable number.

30228216 is an abundant number, since it is smaller than the sum of its proper divisors (45342384).

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

30228216 is a wasteful number, since it uses less digits than its factorization.

30228216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1259518 (or 1259514 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 30228216 is about 5498.0192797043. The cubic root of 30228216 is about 311.5091723675.

The spelling of 30228216 in words is "thirty million, two hundred twenty-eight thousand, two hundred sixteen".