629225028 has 36 divisors (see below), whose sum is σ = 1593774000. Its totient is φ = 209315376.

The previous prime is 629225021. The next prime is 629225039. The reversal of 629225028 is 820522926.

629225028 is a `hidden beast` number, since 62 + 92 + 2 + 502 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 629224983 and 629225001.

It is not an unprimeable number, because it can be changed into a prime (629225021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 451 + ... + 35477.

It is an arithmetic number, because the mean of its divisors is an integer number (44271500).

Almost surely, 2^629225028 is an apocalyptic number.

It is an amenable number.

629225028 is an abundant number, since it is smaller than the sum of its proper divisors (964548972).

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

629225028 is a wasteful number, since it uses less digits than its factorization.

629225028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35536 (or 35531 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 629225028 is about 25084.3582337679. The cubic root of 629225028 is about 856.9102339685.

The spelling of 629225028 in words is "six hundred twenty-nine million, two hundred twenty-five thousand, twenty-eight".