252234405 has 40 divisors (see below), whose sum is σ = 475965600. Its totient is φ = 127440864.

The previous prime is 252234403. The next prime is 252234407. The reversal of 252234405 is 504432252.

It is a happy number.

252234405 is a `hidden beast` number, since 25 + 2 + 234 + 405 = 666.

It is an interprime number because it is at equal distance from previous prime (252234403) and next prime (252234407).

It is not a de Polignac number, because 252234405 - 2¹ = 252234403 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (252234403) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 8695 + ... + 24084.

It is an arithmetic number, because the mean of its divisors is an integer number (11899140).

Almost surely, 2^252234405 is an apocalyptic number.

It is an amenable number.

252234405 is a deficient number, since it is larger than the sum of its proper divisors (223731195).

252234405 is a wasteful number, since it uses less digits than its factorization.

252234405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32815 (or 32806 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 27.

The square root of 252234405 is about 15881.8892138184. The cubic root of 252234405 is about 631.8317438184.

Adding to 252234405 its reverse (504432252), we get a palindrome (756666657).

The spelling of 252234405 in words is "two hundred fifty-two million, two hundred thirty-four thousand, four hundred five".