442629 has 24 divisors (see below), whose sum is σ = 741312. Its totient is φ = 251520.

The previous prime is 442619. The next prime is 442633. The reversal of 442629 is 926244.

It is not a de Polignac number, because 442629 - 2⁷ = 442501 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

442629 is a modest number, since divided by 629 gives 442 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1552 + ... + 1814.

It is an arithmetic number, because the mean of its divisors is an integer number (30888).

2⁴⁴²⁶²⁹ is an apocalyptic number.

It is an amenable number.

442629 is a deficient number, since it is larger than the sum of its proper divisors (298683).

442629 is a wasteful number, since it uses less digits than its factorization.

442629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 294 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 442629 is about 665.3036900544. The cubic root of 442629 is about 76.2102327796.

The spelling of 442629 in words is "four hundred forty-two thousand, six hundred twenty-nine".