252212402 has 32 divisors (see below), whose sum is σ = 419824944. Its totient is φ = 112896000.

The previous prime is 252212381. The next prime is 252212417. The reversal of 252212402 is 204212252.

252212402 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 8 ways, for example, as 16313521 + 235898881 = 4039^2 + 15359^2 .

It is a super-2 number, since 2×252212402² = 127222191445219208, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 209402 + ... + 210602.

Almost surely, 2^252212402 is an apocalyptic number.

252212402 is a deficient number, since it is larger than the sum of its proper divisors (167612542).

252212402 is a wasteful number, since it uses less digits than its factorization.

252212402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 252212402 is about 15881.1964914486. The cubic root of 252212402 is about 631.8133712281.

Adding to 252212402 its reverse (204212252), we get a palindrome (456424654).

The spelling of 252212402 in words is "two hundred fifty-two million, two hundred twelve thousand, four hundred two".