24642220 has 24 divisors (see below), whose sum is σ = 51899904. Its totient is φ = 9828096.

The previous prime is 24642209. The next prime is 24642229. The reversal of 24642220 is 2224642.

It is a junction number, because it is equal to n+sod(n) for n = 24642191 and 24642200.

It is not an unprimeable number, because it can be changed into a prime (24642229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6052 + ... + 9268.

It is an arithmetic number, because the mean of its divisors is an integer number (2162496).

Almost surely, 2^24642220 is an apocalyptic number.

24642220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24642220 is an abundant number, since it is smaller than the sum of its proper divisors (27257684).

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

24642220 is a wasteful number, since it uses less digits than its factorization.

24642220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3609 (or 3607 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 24642220 is about 4964.0930692323. The cubic root of 24642220 is about 291.0001928806. Note that the first 3 decimals are identical.

Adding to 24642220 its reverse (2224642), we get a palindrome (26866862).

The spelling of 24642220 in words is "twenty-four million, six hundred forty-two thousand, two hundred twenty".