24424220 has 24 divisors (see below), whose sum is σ = 51383808. Its totient is φ = 9752000.

The previous prime is 24424207. The next prime is 24424237. The reversal of 24424220 is 2242442.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 24424192 and 24424201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20645 + ... + 21795.

It is an arithmetic number, because the mean of its divisors is an integer number (2140992).

Almost surely, 2^24424220 is an apocalyptic number.

24424220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24424220 is an abundant number, since it is smaller than the sum of its proper divisors (26959588).

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

24424220 is a wasteful number, since it uses less digits than its factorization.

24424220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2221 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 24424220 is about 4942.0866038547. The cubic root of 24424220 is about 290.1395285768.

Adding to 24424220 its reverse (2242442), we get a palindrome (26666662).

The spelling of 24424220 in words is "twenty-four million, four hundred twenty-four thousand, two hundred twenty".