634218452 has 24 divisors (see below), whose sum is σ = 1285816896. Its totient is φ = 268083648.

The previous prime is 634218437. The next prime is 634218479. The reversal of 634218452 is 254812436.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 153098 + ... + 157185.

It is an arithmetic number, because the mean of its divisors is an integer number (53575704).

Almost surely, 2^634218452 is an apocalyptic number.

It is an amenable number.

634218452 is an abundant number, since it is smaller than the sum of its proper divisors (651598444).

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

634218452 is a wasteful number, since it uses less digits than its factorization.

634218452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310367 (or 310365 counting only the distinct ones).

The product of its digits is 46080, while the sum is 35.

The square root of 634218452 is about 25183.6941690452. The cubic root of 634218452 is about 859.1710292108.

The spelling of 634218452 in words is "six hundred thirty-four million, two hundred eighteen thousand, four hundred fifty-two".