30422220 has 48 divisors (see below), whose sum is σ = 85827168. Its totient is φ = 8051200.

The previous prime is 30422219. The next prime is 30422237. The reversal of 30422220 is 2222403.

It is a super-2 number, since 2×30422220² = 1851022939456800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 30422220.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6370 + ... + 10070.

It is an arithmetic number, because the mean of its divisors is an integer number (1788066).

Almost surely, 2^30422220 is an apocalyptic number.

30422220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30422220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42913584).

30422220 is an abundant number, since it is smaller than the sum of its proper divisors (55404948).

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

30422220 is a wasteful number, since it uses less digits than its factorization.

30422220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3850 (or 3848 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 30422220 is about 5515.6341430519. The cubic root of 30422220 is about 312.1741713256.

Adding to 30422220 its reverse (2222403), we get a palindrome (32644623).

The spelling of 30422220 in words is "thirty million, four hundred twenty-two thousand, two hundred twenty".