634665452 has 6 divisors (see below), whose sum is σ = 1110664548. Its totient is φ = 317332724.

The previous prime is 634665433. The next prime is 634665457. The reversal of 634665452 is 254566436.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (634665457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 79333178 + ... + 79333185.

It is an arithmetic number, because the mean of its divisors is an integer number (185110758).

Almost surely, 2^634665452 is an apocalyptic number.

It is an amenable number.

634665452 is a deficient number, since it is larger than the sum of its proper divisors (475999096).

634665452 is a wasteful number, since it uses less digits than its factorization.

634665452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158666367 (or 158666365 counting only the distinct ones).

The product of its digits is 518400, while the sum is 41.

The square root of 634665452 is about 25192.5673959603. The cubic root of 634665452 is about 859.3728310019.

The spelling of 634665452 in words is "six hundred thirty-four million, six hundred sixty-five thousand, four hundred fifty-two".