629223868 has 96 divisors (see below), whose sum is σ = 1394039808. Its totient is φ = 241920000.

The previous prime is 629223863. The next prime is 629223869. The reversal of 629223868 is 868322926.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629223863) 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 31 ways as a sum of consecutive naturals, for example, 2506743 + ... + 2506993.

It is an arithmetic number, because the mean of its divisors is an integer number (14521248).

Almost surely, 2^629223868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 629223868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (697019904).

629223868 is an abundant number, since it is smaller than the sum of its proper divisors (764815940).

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

629223868 is a wasteful number, since it uses less digits than its factorization.

629223868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 441 counting only the distinct ones).

The product of its digits is 497664, while the sum is 46.

The square root of 629223868 is about 25084.3351117784. The cubic root of 629223868 is about 856.9097073861.

The spelling of 629223868 in words is "six hundred twenty-nine million, two hundred twenty-three thousand, eight hundred sixty-eight".