24040240 has 40 divisors (see below), whose sum is σ = 63879840. Its totient is φ = 8242176.

The previous prime is 24040231. The next prime is 24040243. The reversal of 24040240 is 4204042.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (24040243) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 20905 + ... + 22024.

It is an arithmetic number, because the mean of its divisors is an integer number (1596996).

Almost surely, 2^24040240 is an apocalyptic number.

24040240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24040240 is an abundant number, since it is smaller than the sum of its proper divisors (39839600).

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

24040240 is a wasteful number, since it uses less digits than its factorization.

24040240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42949 (or 42943 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 24040240 is about 4903.0847433019. The cubic root of 24040240 is about 288.6110354980.

Adding to 24040240 its reverse (4204042), we get a palindrome (28244282).

The spelling of 24040240 in words is "twenty-four million, forty thousand, two hundred forty".