30227939 has 4 divisors (see below), whose sum is σ = 34546224. Its totient is φ = 25909656.

The previous prime is 30227929. The next prime is 30227941. The reversal of 30227939 is 93972203.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93972203 = 13 ⋅7228631.

It is a cyclic number.

It is not a de Polignac number, because 30227939 - 2²⁰ = 29179363 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30227899 and 30227908.

It is not an unprimeable number, because it can be changed into a prime (30227929) 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, 2159132 + ... + 2159145.

It is an arithmetic number, because the mean of its divisors is an integer number (8636556).

Almost surely, 2^30227939 is an apocalyptic number.

30227939 is a deficient number, since it is larger than the sum of its proper divisors (4318285).

30227939 is an equidigital number, since it uses as much as digits as its factorization.

30227939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4318284.

The product of its (nonzero) digits is 20412, while the sum is 35.

The square root of 30227939 is about 5497.9940887564. The cubic root of 30227939 is about 311.5082208470.

The spelling of 30227939 in words is "thirty million, two hundred twenty-seven thousand, nine hundred thirty-nine".