252612240 has 40 divisors (see below), whose sum is σ = 783098688. Its totient is φ = 67363200.

The previous prime is 252612233. The next prime is 252612253. The reversal of 252612240 is 42216252.

It is a happy number.

252612240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 252612240.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 526036 + ... + 526515.

Almost surely, 2^252612240 is an apocalyptic number.

252612240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

252612240 is an abundant number, since it is smaller than the sum of its proper divisors (530486448).

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

252612240 is a wasteful number, since it uses less digits than its factorization.

252612240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052567 (or 1052561 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 252612240 is about 15893.7799154260. The cubic root of 252612240 is about 632.1470709377.

Adding to 252612240 its reverse (42216252), we get a palindrome (294828492).

The spelling of 252612240 in words is "two hundred fifty-two million, six hundred twelve thousand, two hundred forty".