252481340 has 24 divisors (see below), whose sum is σ = 544542432. Its totient is φ = 98262720.

The previous prime is 252481319. The next prime is 252481343. The reversal of 252481340 is 43184252.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252481343) 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, 169856 + ... + 171335.

It is an arithmetic number, because the mean of its divisors is an integer number (22689268).

Almost surely, 2^252481340 is an apocalyptic number.

252481340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252481340 is an abundant number, since it is smaller than the sum of its proper divisors (292061092).

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

252481340 is a wasteful number, since it uses less digits than its factorization.

252481340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 341237 (or 341235 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 29.

The square root of 252481340 is about 15889.6614186709. The cubic root of 252481340 is about 632.0378622566.

The spelling of 252481340 in words is "two hundred fifty-two million, four hundred eighty-one thousand, three hundred forty".