24220020 has 48 divisors (see below), whose sum is σ = 73983168. Its totient is φ = 5871360.

The previous prime is 24219997. The next prime is 24220037. The reversal of 24220020 is 2002242.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 24219978 and 24220005.

It is a congruent number.

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, 17689 + ... + 19008.

It is an arithmetic number, because the mean of its divisors is an integer number (1541316).

Almost surely, 2^24220020 is an apocalyptic number.

24220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24220020 is an abundant number, since it is smaller than the sum of its proper divisors (49763148).

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

24220020 is a wasteful number, since it uses less digits than its factorization.

24220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36720 (or 36718 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 12.

The square root of 24220020 is about 4921.3839516949. The cubic root of 24220020 is about 289.3286889800.

Adding to 24220020 its reverse (2002242), we get a palindrome (26222262).

The spelling of 24220020 in words is "twenty-four million, two hundred twenty thousand, twenty".