24400424240 has 20 divisors (see below), whose sum is σ = 56730986544. Its totient is φ = 9760169664.

The previous prime is 24400424197. The next prime is 24400424249. The reversal of 24400424240 is 4242400442.

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (24400424249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152502572 + ... + 152502731.

Almost surely, 2^24400424240 is an apocalyptic number.

24400424240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24400424240 is an abundant number, since it is smaller than the sum of its proper divisors (32330562304).

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

24400424240 is a wasteful number, since it uses less digits than its factorization.

24400424240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305005316 (or 305005310 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 24400424240 its reverse (4242400442), we get a palindrome (28642824682).

The spelling of 24400424240 in words is "twenty-four billion, four hundred million, four hundred twenty-four thousand, two hundred forty".