442834 has 16 divisors (see below), whose sum is σ = 776448. Its totient is φ = 185472.

The previous prime is 442831. The next prime is 442837. The reversal of 442834 is 438244.

442834 = 112² + 113² + ... + 139².

It is an interprime number because it is at equal distance from previous prime (442831) and next prime (442837).

It is a super-2 number, since 2×442834² = 392203903112, which contains 22 as substring.

It is a nialpdrome in base 14.

It is a junction number, because it is equal to n+sod(n) for n = 442799 and 442808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322 + ... + 994.

It is an arithmetic number, because the mean of its divisors is an integer number (48528).

2⁴⁴²⁸³⁴ is an apocalyptic number.

442834 is a deficient number, since it is larger than the sum of its proper divisors (333614).

442834 is a wasteful number, since it uses less digits than its factorization.

442834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729.

The product of its digits is 3072, while the sum is 25.

The square root of 442834 is about 665.4577372005. The cubic root of 442834 is about 76.2219963457.

The spelling of 442834 in words is "four hundred forty-two thousand, eight hundred thirty-four".