30620227 has 4 divisors (see below), whose sum is σ = 33403896. Its totient is φ = 27836560.

The previous prime is 30620209. The next prime is 30620237. The reversal of 30620227 is 72202603.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30620227 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30620198 and 30620207.

It is not an unprimeable number, because it can be changed into a prime (30620207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1391818 + ... + 1391839.

It is an arithmetic number, because the mean of its divisors is an integer number (8350974).

Almost surely, 2^30620227 is an apocalyptic number.

30620227 is a deficient number, since it is larger than the sum of its proper divisors (2783669).

30620227 is a wasteful number, since it uses less digits than its factorization.

30620227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783668.

The product of its (nonzero) digits is 1008, while the sum is 22.

The square root of 30620227 is about 5533.5546441686. The cubic root of 30620227 is about 312.8499827191.

The spelling of 30620227 in words is "thirty million, six hundred twenty thousand, two hundred twenty-seven".