252314340 has 72 divisors (see below), whose sum is σ = 750533952. Its totient is φ = 63321600.

The previous prime is 252314327. The next prime is 252314341. The reversal of 252314340 is 43413252.

It is a self number, because there is not a number n which added to its sum of digits gives 252314340.

It is not an unprimeable number, because it can be changed into a prime (252314341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10065 + ... + 24615.

Almost surely, 2^252314340 is an apocalyptic number.

252314340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 252314340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (375266976).

252314340 is an abundant number, since it is smaller than the sum of its proper divisors (498219612).

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

252314340 is a wasteful number, since it uses less digits than its factorization.

252314340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14597 (or 14578 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 252314340 is about 15884.4055601713. The cubic root of 252314340 is about 631.8984808630.

Adding to 252314340 its reverse (43413252), we get a palindrome (295727592).

The spelling of 252314340 in words is "two hundred fifty-two million, three hundred fourteen thousand, three hundred forty".