629444168 has 8 divisors (see below), whose sum is σ = 1180207830. Its totient is φ = 314722080.

The previous prime is 629444147. The next prime is 629444173. The reversal of 629444168 is 861444926.

It can be written as a sum of positive squares in only one way, i.e., 420988324 + 208455844 = 20518^2 + 14438^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39340253 + ... + 39340268.

Almost surely, 2^629444168 is an apocalyptic number.

It is an amenable number.

629444168 is a deficient number, since it is larger than the sum of its proper divisors (550763662).

629444168 is a wasteful number, since it uses less digits than its factorization.

629444168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78680527 (or 78680523 counting only the distinct ones).

The product of its digits is 331776, while the sum is 44.

The square root of 629444168 is about 25088.7259142428. The cubic root of 629444168 is about 857.0097010403.

The spelling of 629444168 in words is "six hundred twenty-nine million, four hundred forty-four thousand, one hundred sixty-eight".