252040426 has 16 divisors (see below), whose sum is σ = 416288160. Its totient is φ = 113492080.

The previous prime is 252040423. The next prime is 252040429. The reversal of 252040426 is 624040252.

It is an interprime number because it is at equal distance from previous prime (252040423) and next prime (252040429).

It is a super-2 number, since 2×252040426² = 127048752676522952, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 252040426.

It is not an unprimeable number, because it can be changed into a prime (252040423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51181 + ... + 55888.

It is an arithmetic number, because the mean of its divisors is an integer number (26018010).

Almost surely, 2^252040426 is an apocalyptic number.

252040426 is a deficient number, since it is larger than the sum of its proper divisors (164247734).

252040426 is a wasteful number, since it uses less digits than its factorization.

252040426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107189.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 252040426 is about 15875.7811146413. The cubic root of 252040426 is about 631.6697337736.

Adding to 252040426 its reverse (624040252), we get a palindrome (876080678).

The spelling of 252040426 in words is "two hundred fifty-two million, forty thousand, four hundred twenty-six".