252040302 has 32 divisors (see below), whose sum is σ = 584444160. Its totient is φ = 80360280.

The previous prime is 252040289. The next prime is 252040303. The reversal of 252040302 is 203040252.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252040303) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100224 + ... + 102707.

It is an arithmetic number, because the mean of its divisors is an integer number (18263880).

Almost surely, 2^252040302 is an apocalyptic number.

252040302 is an abundant number, since it is smaller than the sum of its proper divisors (332403858).

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

252040302 is a wasteful number, since it uses less digits than its factorization.

252040302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202965 (or 202959 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 252040302 is about 15875.7772093211. Note that the first 3 decimals coincide. The cubic root of 252040302 is about 631.6696301830.

Adding to 252040302 its reverse (203040252), we get a palindrome (455080554).

Subtracting from 252040302 its reverse (203040252), we obtain a triangular number (49000050 = T₉₈₉₉).

The spelling of 252040302 in words is "two hundred fifty-two million, forty thousand, three hundred two".