30222645 has 32 divisors (see below), whose sum is σ = 49876992. Its totient is φ = 15619392.

The previous prime is 30222637. The next prime is 30222653. The reversal of 30222645 is 54622203.

It is an interprime number because it is at equal distance from previous prime (30222637) and next prime (30222653).

It is not a de Polignac number, because 30222645 - 2³ = 30222637 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 114784 + ... + 115046.

It is an arithmetic number, because the mean of its divisors is an integer number (1558656).

Almost surely, 2^30222645 is an apocalyptic number.

It is an amenable number.

30222645 is a deficient number, since it is larger than the sum of its proper divisors (19654347).

30222645 is a wasteful number, since it uses less digits than its factorization.

30222645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 30222645 is about 5497.5126193580. The cubic root of 30222645 is about 311.4900343518.

Adding to 30222645 its reverse (54622203), we get a palindrome (84844848).

The spelling of 30222645 in words is "thirty million, two hundred twenty-two thousand, six hundred forty-five".