30216028 has 12 divisors (see below), whose sum is σ = 54701640. Its totient is φ = 14586992.

The previous prime is 30215993. The next prime is 30216029. The reversal of 30216028 is 82061203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30216029) 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, 130126 + ... + 130357.

It is an arithmetic number, because the mean of its divisors is an integer number (4558470).

Almost surely, 2^30216028 is an apocalyptic number.

It is an amenable number.

30216028 is a deficient number, since it is larger than the sum of its proper divisors (24485612).

30216028 is a wasteful number, since it uses less digits than its factorization.

30216028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260516 (or 260514 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 30216028 is about 5496.9107687864. The cubic root of 30216028 is about 311.4672999640.

The spelling of 30216028 in words is "thirty million, two hundred sixteen thousand, twenty-eight".