629769944 has 16 divisors (see below), whose sum is σ = 1181999520. Its totient is φ = 314570080.

The previous prime is 629769937. The next prime is 629769949. The reversal of 629769944 is 449967926.

It is a super-2 number, since 2×629769944² = 793220364731526272, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 629769944.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629769949) 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 3 ways as a sum of consecutive naturals, for example, 30752 + ... + 46959.

It is an arithmetic number, because the mean of its divisors is an integer number (73874970).

Almost surely, 2^629769944 is an apocalyptic number.

It is an amenable number.

629769944 is a deficient number, since it is larger than the sum of its proper divisors (552229576).

629769944 is a wasteful number, since it uses less digits than its factorization.

629769944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78730 (or 78726 counting only the distinct ones).

The product of its digits is 5878656, while the sum is 56.

The square root of 629769944 is about 25095.2175523545. The cubic root of 629769944 is about 857.1575272516.

The spelling of 629769944 in words is "six hundred twenty-nine million, seven hundred sixty-nine thousand, nine hundred forty-four".