634345052 has 24 divisors (see below), whose sum is σ = 1212608880. Its totient is φ = 287960960.

The previous prime is 634345051. The next prime is 634345067. The reversal of 634345052 is 250543436.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634345051) 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 7 ways as a sum of consecutive naturals, for example, 26024 + ... + 44112.

It is an arithmetic number, because the mean of its divisors is an integer number (50525370).

Almost surely, 2^634345052 is an apocalyptic number.

It is an amenable number.

634345052 is a deficient number, since it is larger than the sum of its proper divisors (578263828).

634345052 is a wasteful number, since it uses less digits than its factorization.

634345052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18901 (or 18899 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 634345052 is about 25186.2075747819. The cubic root of 634345052 is about 859.2281934341.

Adding to 634345052 its reverse (250543436), we get a palindrome (884888488).

It can be divided in two parts, 63434 and 5052, that added together give a palindrome (68486).

The spelling of 634345052 in words is "six hundred thirty-four million, three hundred forty-five thousand, fifty-two".