634340252 has 96 divisors (see below), whose sum is σ = 1408264704. Its totient is φ = 243360000.

The previous prime is 634340243. The next prime is 634340293. The reversal of 634340252 is 252043436.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2527127 + ... + 2527377.

It is an arithmetic number, because the mean of its divisors is an integer number (14669424).

Almost surely, 2^634340252 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634340252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (704132352).

634340252 is an abundant number, since it is smaller than the sum of its proper divisors (773924452).

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

634340252 is a wasteful number, since it uses less digits than its factorization.

634340252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 457 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 634340252 is about 25186.1122843523. The cubic root of 634340252 is about 859.2260262089.

Adding to 634340252 its reverse (252043436), we get a palindrome (886383688).

The spelling of 634340252 in words is "six hundred thirty-four million, three hundred forty thousand, two hundred fifty-two".