24440940 has 144 divisors (see below), whose sum is σ = 79252992. Its totient is φ = 6319296.

The previous prime is 24440891. The next prime is 24440953. The reversal of 24440940 is 4904442.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 228367 + ... + 228473.

It is an arithmetic number, because the mean of its divisors is an integer number (550368).

Almost surely, 2^24440940 is an apocalyptic number.

24440940 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 24440940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39626496).

24440940 is an abundant number, since it is smaller than the sum of its proper divisors (54812052).

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

24440940 is a wasteful number, since it uses less digits than its factorization.

24440940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178 (or 164 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 24440940 is about 4943.7779076330. Note that the first 3 decimals coincide. The cubic root of 24440940 is about 290.2057200644.

The spelling of 24440940 in words is "twenty-four million, four hundred forty thousand, nine hundred forty".