629881880 has 16 divisors (see below), whose sum is σ = 1417234320. Its totient is φ = 251952736.

The previous prime is 629881877. The next prime is 629881883. The reversal of 629881880 is 88188926.

629881880 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (629881877) and next prime (629881883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629881883) 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, 7873484 + ... + 7873563.

It is an arithmetic number, because the mean of its divisors is an integer number (88577145).

Almost surely, 2^629881880 is an apocalyptic number.

It is an amenable number.

629881880 is an abundant number, since it is smaller than the sum of its proper divisors (787352440).

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

629881880 is a wasteful number, since it uses less digits than its factorization.

629881880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15747058 (or 15747054 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 50.

The square root of 629881880 is about 25097.4476789972. The cubic root of 629881880 is about 857.2083082825.

The spelling of 629881880 in words is "six hundred twenty-nine million, eight hundred eighty-one thousand, eight hundred eighty".