30622230 has 48 divisors (see below), whose sum is σ = 80533440. Its totient is φ = 8072064.

The previous prime is 30622201. The next prime is 30622237. The reversal of 30622230 is 3222603.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30622237) 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 23 ways as a sum of consecutive naturals, for example, 6099 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (1677780).

Almost surely, 2^30622230 is an apocalyptic number.

30622230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 30622230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40266720).

30622230 is an abundant number, since it is smaller than the sum of its proper divisors (49911210).

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

30622230 is a wasteful number, since it uses less digits than its factorization.

30622230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3925 (or 3922 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 30622230 is about 5533.7356279461. The cubic root of 30622230 is about 312.8568041888.

Adding to 30622230 its reverse (3222603), we get a palindrome (33844833).

The spelling of 30622230 in words is "thirty million, six hundred twenty-two thousand, two hundred thirty".