629422 has 4 divisors (see below), whose sum is σ = 944136. Its totient is φ = 314710.

The previous prime is 629417. The next prime is 629429. The reversal of 629422 is 224926.

It is a semiprime because it is the product of two primes.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (629429) by changing a digit.

629422 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 as a sum of consecutive naturals, namely, 157354 + ... + 157357.

It is an arithmetic number, because the mean of its divisors is an integer number (236034).

2⁶²⁹⁴²² is an apocalyptic number.

629422 is a deficient number, since it is larger than the sum of its proper divisors (314714).

629422 is a wasteful number, since it uses less digits than its factorization.

629422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 314713.

The product of its digits is 1728, while the sum is 25.

The square root of 629422 is about 793.3612039922. The cubic root of 629422 is about 85.6999640093.

Subtracting from 629422 its reverse (224926), we obtain a square (404496 = 636²).

The spelling of 629422 in words is "six hundred twenty-nine thousand, four hundred twenty-two".