24142240 has 24 divisors (see below), whose sum is σ = 57036420. Its totient is φ = 9656832.

The previous prime is 24142231. The next prime is 24142247. The reversal of 24142240 is 4224142.

It can be written as a sum of positive squares in 2 ways, for example, as 23001616 + 1140624 = 4796^2 + 1068^2 .

It is not an unprimeable number, because it can be changed into a prime (24142247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75285 + ... + 75604.

Almost surely, 2^24142240 is an apocalyptic number.

24142240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

24142240 is an abundant number, since it is smaller than the sum of its proper divisors (32894180).

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

24142240 is a wasteful number, since it uses less digits than its factorization.

24142240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150904 (or 150896 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 24142240 is about 4913.4753484677. The cubic root of 24142240 is about 289.0186408158.

Adding to 24142240 its reverse (4224142), we get a palindrome (28366382).

The spelling of 24142240 in words is "twenty-four million, one hundred forty-two thousand, two hundred forty".