629428 has 12 divisors (see below), whose sum is σ = 1122660. Its totient is φ = 308672.

The previous prime is 629417. The next prime is 629429. The reversal of 629428 is 824926.

629428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 169744 + 459684 = 412^2 + 678^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 629428.

It is a congruent number.

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

629428 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273 + ... + 1696.

It is an arithmetic number, because the mean of its divisors is an integer number (93555).

2⁶²⁹⁴²⁸ is an apocalyptic number.

It is an amenable number.

629428 is a deficient number, since it is larger than the sum of its proper divisors (493232).

629428 is a wasteful number, since it uses less digits than its factorization.

629428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3026 (or 3024 counting only the distinct ones).

The product of its digits is 6912, while the sum is 31.

The square root of 629428 is about 793.3649853630. The cubic root of 629428 is about 85.7002363216.

The spelling of 629428 in words is "six hundred twenty-nine thousand, four hundred twenty-eight".