252140434 has 16 divisors (see below), whose sum is σ = 465490368. Its totient is φ = 99747792.

The previous prime is 252140423. The next prime is 252140443. The reversal of 252140434 is 434041252.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 252140399 and 252140408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 692512 + ... + 692875.

It is an arithmetic number, because the mean of its divisors is an integer number (29093148).

Almost surely, 2^252140434 is an apocalyptic number.

252140434 is a deficient number, since it is larger than the sum of its proper divisors (213349934).

252140434 is a wasteful number, since it uses less digits than its factorization.

252140434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385409.

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

The square root of 252140434 is about 15878.9305055473. The cubic root of 252140434 is about 631.7532702048.

Adding to 252140434 its reverse (434041252), we get a palindrome (686181686).

The spelling of 252140434 in words is "two hundred fifty-two million, one hundred forty thousand, four hundred thirty-four".