24140040 has 32 divisors (see below), whose sum is σ = 72420480. Its totient is φ = 6437312.

The previous prime is 24140009. The next prime is 24140047. The reversal of 24140040 is 4004142.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is not an unprimeable number, because it can be changed into a prime (24140047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100464 + ... + 100703.

It is an arithmetic number, because the mean of its divisors is an integer number (2263140).

Almost surely, 2^24140040 is an apocalyptic number.

24140040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24140040 is an abundant number, since it is smaller than the sum of its proper divisors (48280440).

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

24140040 is a wasteful number, since it uses less digits than its factorization.

24140040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201181 (or 201177 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 24140040 is about 4913.2514692411. The cubic root of 24140040 is about 289.0098614547.

Adding to 24140040 its reverse (4004142), we get a palindrome (28144182).

The spelling of 24140040 in words is "twenty-four million, one hundred forty thousand, forty".