24428140 has 48 divisors (see below), whose sum is σ = 57494304. Its totient is φ = 8640000.

The previous prime is 24428137. The next prime is 24428147. The reversal of 24428140 is 4182442.

It is a Smith number, since the sum of its digits (25) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24428147) 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, 6640 + ... + 9640.

It is an arithmetic number, because the mean of its divisors is an integer number (1197798).

Almost surely, 2^24428140 is an apocalyptic number.

24428140 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 24428140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28747152).

24428140 is an abundant number, since it is smaller than the sum of its proper divisors (33066164).

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

24428140 is a wasteful number, since it uses less digits than its factorization.

24428140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058 (or 3056 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 25.

The square root of 24428140 is about 4942.4831815596. The cubic root of 24428140 is about 290.1550498655.

The spelling of 24428140 in words is "twenty-four million, four hundred twenty-eight thousand, one hundred forty".