30022420 has 24 divisors (see below), whose sum is σ = 63418824. Its totient is φ = 11938176.

The previous prime is 30022411. The next prime is 30022427. The reversal of 30022420 is 2422003.

It can be written as a sum of positive squares in 4 ways, for example, as 5400976 + 24621444 = 2324^2 + 4962^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30022420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30022427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 879 + ... + 7798.

It is an arithmetic number, because the mean of its divisors is an integer number (2642451).

Almost surely, 2^30022420 is an apocalyptic number.

It is an amenable number.

30022420 is an abundant number, since it is smaller than the sum of its proper divisors (33396404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30022420 is a wasteful number, since it uses less digits than its factorization.

30022420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8859 (or 8857 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 30022420 is about 5479.2718494340. The cubic root of 30022420 is about 310.8006359352.

Adding to 30022420 its reverse (2422003), we get a palindrome (32444423).

The spelling of 30022420 in words is "thirty million, twenty-two thousand, four hundred twenty".