30224640 has 144 divisors (see below), whose sum is σ = 102428928. Its totient is φ = 7569408.

The previous prime is 30224639. The next prime is 30224669. The reversal of 30224640 is 4642203.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 65049 + ... + 65511.

It is an arithmetic number, because the mean of its divisors is an integer number (711312).

Almost surely, 2^30224640 is an apocalyptic number.

30224640 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 30224640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51214464).

30224640 is an abundant number, since it is smaller than the sum of its proper divisors (72204288).

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

30224640 is a wasteful number, since it uses less digits than its factorization.

30224640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504 (or 490 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 30224640 is about 5497.6940620591. The cubic root of 30224640 is about 311.4968880310.

Adding to 30224640 its reverse (4642203), we get a palindrome (34866843).

It can be divided in two parts, 302 and 24640, that added together give a palindrome (24942).

The spelling of 30224640 in words is "thirty million, two hundred twenty-four thousand, six hundred forty".