24428040 has 128 divisors (see below), whose sum is σ = 90236160. Its totient is φ = 5151744.

The previous prime is 24428039. The next prime is 24428051. The reversal of 24428040 is 4082442.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 24428040.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9802 + ... + 12038.

It is an arithmetic number, because the mean of its divisors is an integer number (704970).

Almost surely, 2^24428040 is an apocalyptic number.

24428040 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 24428040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45118080).

24428040 is an abundant number, since it is smaller than the sum of its proper divisors (65808120).

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

24428040 is a wasteful number, since it uses less digits than its factorization.

24428040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 24428040 is about 4942.4730651770. The cubic root of 24428040 is about 290.1546539349.

The spelling of 24428040 in words is "twenty-four million, four hundred twenty-eight thousand, forty".