252213726 has 32 divisors (see below), whose sum is σ = 514515456. Its totient is φ = 82404000.

The previous prime is 252213713. The next prime is 252213743. The reversal of 252213726 is 627312252.

252213726 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×252213726² = 127223527165606152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 252213693 and 252213702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75471 + ... + 78741.

It is an arithmetic number, because the mean of its divisors is an integer number (16078608).

Almost surely, 2^252213726 is an apocalyptic number.

252213726 is an abundant number, since it is smaller than the sum of its proper divisors (262301730).

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

252213726 is a wasteful number, since it uses less digits than its factorization.

252213726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3528.

The product of its digits is 10080, while the sum is 30.

The square root of 252213726 is about 15881.2381759106. The cubic root of 252213726 is about 631.8144768035.

Adding to 252213726 its reverse (627312252), we get a palindrome (879525978).

The spelling of 252213726 in words is "two hundred fifty-two million, two hundred thirteen thousand, seven hundred twenty-six".