252241340 has 48 divisors (see below), whose sum is σ = 600489120. Its totient is φ = 88231680.

The previous prime is 252241313. The next prime is 252241357. The reversal of 252241340 is 43142252.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20591 + ... + 30470.

It is an arithmetic number, because the mean of its divisors is an integer number (12510190).

Almost surely, 2^252241340 is an apocalyptic number.

252241340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252241340 is an abundant number, since it is smaller than the sum of its proper divisors (348247780).

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

252241340 is a wasteful number, since it uses less digits than its factorization.

252241340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51102 (or 51100 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 252241340 is about 15882.1075427665. The cubic root of 252241340 is about 631.8375343488.

Adding to 252241340 its reverse (43142252), we get a palindrome (295383592).

The spelling of 252241340 in words is "two hundred fifty-two million, two hundred forty-one thousand, three hundred forty".