629772144 has 20 divisors (see below), whose sum is σ = 1626911496. Its totient is φ = 209924032.

The previous prime is 629772139. The next prime is 629772163. The reversal of 629772144 is 441277926.

It is a super-2 number, since 2×629772144² = 793225906716713472, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 629772096 and 629772105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6560079 + ... + 6560174.

Almost surely, 2^629772144 is an apocalyptic number.

It is an amenable number.

629772144 is an abundant number, since it is smaller than the sum of its proper divisors (997139352).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

629772144 is a wasteful number, since it uses less digits than its factorization.

629772144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13120264 (or 13120258 counting only the distinct ones).

The product of its digits is 169344, while the sum is 42.

The square root of 629772144 is about 25095.2613853692. The cubic root of 629772144 is about 857.1585253644.

The spelling of 629772144 in words is "six hundred twenty-nine million, seven hundred seventy-two thousand, one hundred forty-four".