629489916 has 54 divisors (see below), whose sum is σ = 1749028736. Its totient is φ = 190753200.

The previous prime is 629489909. The next prime is 629489947. The reversal of 629489916 is 619984926.

629489916 is a `hidden beast` number, since 629 + 4 + 8 + 9 + 9 + 1 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 67900 + ... + 76611.

Almost surely, 2^629489916 is an apocalyptic number.

629489916 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

629489916 is an abundant number, since it is smaller than the sum of its proper divisors (1119538820).

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

629489916 is a wasteful number, since it uses less digits than its factorization.

629489916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144543 (or 144527 counting only the distinct ones).

The product of its digits is 1679616, while the sum is 54.

The square root of 629489916 is about 25089.6376219347. The cubic root of 629489916 is about 857.0304630247.

It can be divided in two parts, 629 and 489916, that added together give a triangular number (490545 = T₉₉₀).

The spelling of 629489916 in words is "six hundred twenty-nine million, four hundred eighty-nine thousand, nine hundred sixteen".