252040424 has 16 divisors (see below), whose sum is σ = 472790400. Its totient is φ = 125962992.

The previous prime is 252040423. The next prime is 252040429. The reversal of 252040424 is 424040252.

252040424 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 252040424.

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 3 ways as a sum of consecutive naturals, for example, 15959 + ... + 27545.

It is an arithmetic number, because the mean of its divisors is an integer number (29549400).

Almost surely, 2^252040424 is an apocalyptic number.

It is an amenable number.

252040424 is a deficient number, since it is larger than the sum of its proper divisors (220749976).

252040424 is a wasteful number, since it uses less digits than its factorization.

252040424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14312 (or 14308 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 23.

The square root of 252040424 is about 15875.7810516522. The cubic root of 252040424 is about 631.6697321028.

Adding to 252040424 its reverse (424040252), we get a palindrome (676080676).

The spelling of 252040424 in words is "two hundred fifty-two million, forty thousand, four hundred twenty-four".