634572382 has 4 divisors (see below), whose sum is σ = 951858576. Its totient is φ = 317286190.

The previous prime is 634572361. The next prime is 634572397. The reversal of 634572382 is 283275436.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×634572382³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 as a sum of consecutive naturals, namely, 158643094 + ... + 158643097.

It is an arithmetic number, because the mean of its divisors is an integer number (237964644).

Almost surely, 2^634572382 is an apocalyptic number.

634572382 is a deficient number, since it is larger than the sum of its proper divisors (317286194).

634572382 is a wasteful number, since it uses less digits than its factorization.

634572382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317286193.

The product of its digits is 241920, while the sum is 40.

The square root of 634572382 is about 25190.7201564386. The cubic root of 634572382 is about 859.3308216046.

The spelling of 634572382 in words is "six hundred thirty-four million, five hundred seventy-two thousand, three hundred eighty-two".