30222845 has 4 divisors (see below), whose sum is σ = 36267420. Its totient is φ = 24178272.

The previous prime is 30222827. The next prime is 30222847. The reversal of 30222845 is 54822203.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11930116 + 18292729 = 3454^2 + 4277^2 .

It is a cyclic number.

It is not a de Polignac number, because 30222845 - 2¹⁴ = 30206461 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30222847) 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, 3022280 + ... + 3022289.

It is an arithmetic number, because the mean of its divisors is an integer number (9066855).

Almost surely, 2^30222845 is an apocalyptic number.

It is an amenable number.

30222845 is a deficient number, since it is larger than the sum of its proper divisors (6044575).

30222845 is an equidigital number, since it uses as much as digits as its factorization.

30222845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6044574.

The product of its (nonzero) digits is 3840, while the sum is 26.

The square root of 30222845 is about 5497.5308093725. The cubic root of 30222845 is about 311.4907214510.

The spelling of 30222845 in words is "thirty million, two hundred twenty-two thousand, eight hundred forty-five".