629680018 has 8 divisors (see below), whose sum is σ = 1030385520. Its totient is φ = 286218180.

The previous prime is 629679997. The next prime is 629680033. The reversal of 629680018 is 810086926.

It is a sphenic number, since it is the product of 3 distinct primes.

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, 14310888 + ... + 14310931.

It is an arithmetic number, because the mean of its divisors is an integer number (128798190).

Almost surely, 2^629680018 is an apocalyptic number.

629680018 is a deficient number, since it is larger than the sum of its proper divisors (400705502).

629680018 is a wasteful number, since it uses less digits than its factorization.

629680018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28621832.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 629680018 is about 25093.4257924262. The cubic root of 629680018 is about 857.1167269468.

The spelling of 629680018 in words is "six hundred twenty-nine million, six hundred eighty thousand, eighteen".