442712 has 8 divisors (see below), whose sum is σ = 830100. Its totient is φ = 221352.

The previous prime is 442703. The next prime is 442721. The reversal of 442712 is 217244.

It is an interprime number because it is at equal distance from previous prime (442703) and next prime (442721).

It is a tau number, because it is divible by the number of its divisors (8).

It is a d-powerful number, because it can be written as 4⁷ + 4⁹ + 7³ + 2¹⁵ + 1 + 2¹⁷ .

It is a plaindrome in base 13.

It is a congruent number.

It is an unprimeable number.

442712 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 as a sum of consecutive naturals, namely, 27662 + ... + 27677.

2⁴⁴²⁷¹² is an apocalyptic number.

It is an amenable number.

442712 is a deficient number, since it is larger than the sum of its proper divisors (387388).

442712 is a wasteful number, since it uses less digits than its factorization.

442712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55345 (or 55341 counting only the distinct ones).

The product of its digits is 448, while the sum is 20.

The square root of 442712 is about 665.3660646591. The cubic root of 442712 is about 76.2149960268.

Adding to 442712 its reverse (217244), we get a palindrome (659956).

The spelling of 442712 in words is "four hundred forty-two thousand, seven hundred twelve", and thus it is an iban number.