24120420 has 48 divisors (see below), whose sum is σ = 69115200. Its totient is φ = 6281856.

The previous prime is 24120419. The next prime is 24120427. The reversal of 24120420 is 2402142.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 24120420.

It is not an unprimeable number, because it can be changed into a prime (24120427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2095 + ... + 7254.

It is an arithmetic number, because the mean of its divisors is an integer number (1439900).

Almost surely, 2^24120420 is an apocalyptic number.

24120420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24120420 is an abundant number, since it is smaller than the sum of its proper divisors (44994780).

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

24120420 is a wasteful number, since it uses less digits than its factorization.

24120420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9404 (or 9402 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 24120420 is about 4911.2544222429. The cubic root of 24120420 is about 288.9315419161.

Adding to 24120420 its reverse (2402142), we get a palindrome (26522562).

The spelling of 24120420 in words is "twenty-four million, one hundred twenty thousand, four hundred twenty".