629552269 has 12 divisors (see below), whose sum is σ = 647573940. Its totient is φ = 611952000.

The previous prime is 629552257. The next prime is 629552317. The reversal of 629552269 is 962255926.

It can be written as a sum of positive squares in 6 ways, for example, as 454968900 + 174583369 = 21330^2 + 13213^2 .

It is not a de Polignac number, because 629552269 - 2⁷ = 629552141 is a prime.

It is a super-2 number, since 2×629552269² = 792672118806096722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629552969) 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 11 ways as a sum of consecutive naturals, for example, 330219 + ... + 332119.

It is an arithmetic number, because the mean of its divisors is an integer number (53964495).

Almost surely, 2^629552269 is an apocalyptic number.

It is an amenable number.

629552269 is a deficient number, since it is larger than the sum of its proper divisors (18021671).

629552269 is an equidigital number, since it uses as much as digits as its factorization.

629552269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2112 (or 2051 counting only the distinct ones).

The product of its digits is 583200, while the sum is 46.

The square root of 629552269 is about 25090.8801958002. The cubic root of 629552269 is about 857.0587592980.

It can be divided in two parts, 6295 and 52269, that added together give a square (58564 = 242²).

The spelling of 629552269 in words is "six hundred twenty-nine million, five hundred fifty-two thousand, two hundred sixty-nine".