634574272 has 56 divisors (see below), whose sum is σ = 1308232080. Its totient is φ = 305141760.

The previous prime is 634574257. The next prime is 634574279. The reversal of 634574272 is 272475436.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634574279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209247 + ... + 212257.

Almost surely, 2^634574272 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 634574272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (654116040).

634574272 is an abundant number, since it is smaller than the sum of its proper divisors (673657808).

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

634574272 is a wasteful number, since it uses less digits than its factorization.

634574272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3149 (or 3139 counting only the distinct ones).

The product of its digits is 282240, while the sum is 40.

The square root of 634574272 is about 25190.7576702250. The cubic root of 634574272 is about 859.3316747427.

The spelling of 634574272 in words is "six hundred thirty-four million, five hundred seventy-four thousand, two hundred seventy-two".