634505746 has 16 divisors (see below), whose sum is σ = 1089356544. Its totient is φ = 271522944.

The previous prime is 634505743. The next prime is 634505747. The reversal of 634505746 is 647505436.

It is a junction number, because it is equal to n+sod(n) for n = 634505699 and 634505708.

It is not an unprimeable number, because it can be changed into a prime (634505743) by changing a digit.

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, 24250 + ... + 43093.

It is an arithmetic number, because the mean of its divisors is an integer number (68084784).

Almost surely, 2^634505746 is an apocalyptic number.

634505746 is a deficient number, since it is larger than the sum of its proper divisors (454850798).

634505746 is a wasteful number, since it uses less digits than its factorization.

634505746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68025.

The product of its (nonzero) digits is 302400, while the sum is 40.

The square root of 634505746 is about 25189.3974918020. The cubic root of 634505746 is about 859.3007413098.

It can be divided in two parts, 63450 and 5746, that added together give a palindrome (69196).

The spelling of 634505746 in words is "six hundred thirty-four million, five hundred five thousand, seven hundred forty-six".