634109528 has 16 divisors (see below), whose sum is σ = 1280413680. Its totient is φ = 292665888.

The previous prime is 634109527. The next prime is 634109533. The reversal of 634109528 is 825901436.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 634109491 and 634109500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634109527) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 3048500 + ... + 3048707.

It is an arithmetic number, because the mean of its divisors is an integer number (80025855).

Almost surely, 2^634109528 is an apocalyptic number.

It is an amenable number.

634109528 is an abundant number, since it is smaller than the sum of its proper divisors (646304152).

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

634109528 is a wasteful number, since it uses less digits than its factorization.

634109528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6097226 (or 6097222 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 634109528 is about 25181.5314863890. The cubic root of 634109528 is about 859.1218402166.

The spelling of 634109528 in words is "six hundred thirty-four million, one hundred nine thousand, five hundred twenty-eight".