252043240 has 32 divisors (see below), whose sum is σ = 568270080. Its totient is φ = 100608832.

The previous prime is 252043229. The next prime is 252043243. The reversal of 252043240 is 42340252.

It is not an unprimeable number, because it can be changed into a prime (252043243) 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 7 ways as a sum of consecutive naturals, for example, 13857 + ... + 26383.

It is an arithmetic number, because the mean of its divisors is an integer number (17758440).

Almost surely, 2^252043240 is an apocalyptic number.

252043240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252043240 is an abundant number, since it is smaller than the sum of its proper divisors (316226840).

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

252043240 is a wasteful number, since it uses less digits than its factorization.

252043240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13041 (or 13037 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 22.

The square root of 252043240 is about 15875.8697399544. The cubic root of 252043240 is about 631.6720846028.

Adding to 252043240 its reverse (42340252), we get a palindrome (294383492).

The spelling of 252043240 in words is "two hundred fifty-two million, forty-three thousand, two hundred forty".