442412 has 6 divisors (see below), whose sum is σ = 774228. Its totient is φ = 221204.

The previous prime is 442399. The next prime is 442439. The reversal of 442412 is 214244.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

442412 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 (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55298 + ... + 55305.

It is an arithmetic number, because the mean of its divisors is an integer number (129038).

2⁴⁴²⁴¹² is an apocalyptic number.

It is an amenable number.

442412 is a deficient number, since it is larger than the sum of its proper divisors (331816).

442412 is a wasteful number, since it uses less digits than its factorization.

442412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110607 (or 110605 counting only the distinct ones).

The product of its digits is 256, while the sum is 17.

The square root of 442412 is about 665.1405866432. The cubic root of 442412 is about 76.1977766566.

Adding to 442412 its reverse (214244), we get a palindrome (656656).

The spelling of 442412 in words is "four hundred forty-two thousand, four hundred twelve", and thus it is an iban number.