634726444 has 24 divisors (see below), whose sum is σ = 1216244736. Its totient is φ = 287442000.

The previous prime is 634726363. The next prime is 634726487. The reversal of 634726444 is 444627436.

It is a junction number, because it is equal to n+sod(n) for n = 634726397 and 634726406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14692 + ... + 38539.

It is an arithmetic number, because the mean of its divisors is an integer number (50676864).

Almost surely, 2^634726444 is an apocalyptic number.

It is an amenable number.

634726444 is a deficient number, since it is larger than the sum of its proper divisors (581518292).

634726444 is a wasteful number, since it uses less digits than its factorization.

634726444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53517 (or 53515 counting only the distinct ones).

The product of its digits is 387072, while the sum is 40.

The square root of 634726444 is about 25193.7778826440. Note that the first 3 decimals coincide. The cubic root of 634726444 is about 859.4003589899.

The spelling of 634726444 in words is "six hundred thirty-four million, seven hundred twenty-six thousand, four hundred forty-four".