24420222 has 36 divisors (see below), whose sum is σ = 54434016. Its totient is φ = 7912080.

The previous prime is 24420203. The next prime is 24420239. The reversal of 24420222 is 22202442.

24420222 is a `hidden beast` number, since 2 + 442 + 0 + 222 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 24420195 and 24420204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24147 + ... + 25137.

It is an arithmetic number, because the mean of its divisors is an integer number (1512056).

Almost surely, 2^24420222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 24420222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27217008).

24420222 is an abundant number, since it is smaller than the sum of its proper divisors (30013794).

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

24420222 is a wasteful number, since it uses less digits than its factorization.

24420222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1073 (or 1033 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 24420222 is about 4941.6821022806. The cubic root of 24420222 is about 290.1236967354.

Adding to 24420222 its reverse (22202442), we get a palindrome (46622664).

It can be divided in two parts, 24420 and 222, that added together give a palindrome (24642).

The spelling of 24420222 in words is "twenty-four million, four hundred twenty thousand, two hundred twenty-two".