24220920 has 128 divisors (see below), whose sum is σ = 79626240. Its totient is φ = 5867520.

The previous prime is 24220913. The next prime is 24220927. The reversal of 24220920 is 2902242.

It is an interprime number because it is at equal distance from previous prime (24220913) and next prime (24220927).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24220927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63049 + ... + 63431.

It is an arithmetic number, because the mean of its divisors is an integer number (622080).

Almost surely, 2^24220920 is an apocalyptic number.

24220920 is a gapful number since it is divisible by the number (20) 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 24220920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39813120).

24220920 is an abundant number, since it is smaller than the sum of its proper divisors (55405320).

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

24220920 is a wasteful number, since it uses less digits than its factorization.

24220920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445 (or 441 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 24220920 is about 4921.4753885395. The cubic root of 24220920 is about 289.3322726901.

The spelling of 24220920 in words is "twenty-four million, two hundred twenty thousand, nine hundred twenty".