629842 has 8 divisors (see below), whose sum is σ = 967932. Its totient is φ = 307200.

The previous prime is 629819. The next prime is 629843. The reversal of 629842 is 248926.

It can be written as a sum of positive squares in 2 ways, for example, as 609961 + 19881 = 781^2 + 141^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (629843) by changing a digit.

629842 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, 3759 + ... + 3922.

2⁶²⁹⁸⁴² is an apocalyptic number.

629842 is a deficient number, since it is larger than the sum of its proper divisors (338090).

629842 is a wasteful number, since it uses less digits than its factorization.

629842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7724.

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

The square root of 629842 is about 793.6258564336. The cubic root of 629842 is about 85.7190216960.

The spelling of 629842 in words is "six hundred twenty-nine thousand, eight hundred forty-two".