30228377 has 2 divisors, whose sum is σ = 30228378. Its totient is φ = 30228376.

The previous prime is 30228361. The next prime is 30228421. The reversal of 30228377 is 77382203.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 7722841 = 4744^2 + 2779^2 .

It is an emirp because it is prime and its reverse (77382203) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30228377 - 2⁴ = 30228361 is a prime.

It is not a weakly prime, because it can be changed into another prime (30228307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15114188 + 15114189.

It is an arithmetic number, because the mean of its divisors is an integer number (15114189).

Almost surely, 2^30228377 is an apocalyptic number.

It is an amenable number.

30228377 is a deficient number, since it is larger than the sum of its proper divisors (1).

30228377 is an equidigital number, since it uses as much as digits as its factorization.

30228377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 30228377 is about 5498.0339213213. The cubic root of 30228377 is about 311.5097254147.

The spelling of 30228377 in words is "thirty million, two hundred twenty-eight thousand, three hundred seventy-seven".