252640614 has 16 divisors (see below), whose sum is σ = 505707120. Its totient is φ = 84142560.

The previous prime is 252640603. The next prime is 252640631. The reversal of 252640614 is 416046252.

It is a congruent number.

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, 9757 + ... + 24504.

It is an arithmetic number, because the mean of its divisors is an integer number (31606695).

Almost surely, 2^252640614 is an apocalyptic number.

252640614 is an abundant number, since it is smaller than the sum of its proper divisors (253066506).

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

252640614 is a wasteful number, since it uses less digits than its factorization.

252640614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35495.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 252640614 is about 15894.6725037039. The cubic root of 252640614 is about 632.1707381327.

Adding to 252640614 its reverse (416046252), we get a palindrome (668686866).

The spelling of 252640614 in words is "two hundred fifty-two million, six hundred forty thousand, six hundred fourteen".