442497 has 24 divisors (see below), whose sum is σ = 689472. Its totient is φ = 251680.

The previous prime is 442489. The next prime is 442499. The reversal of 442497 is 794244.

It is not a de Polignac number, because 442497 - 2³ = 442489 is a prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 442497.

It is not an unprimeable number, because it can be changed into a prime (442499) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8323 + ... + 8375.

It is an arithmetic number, because the mean of its divisors is an integer number (28728).

2⁴⁴²⁴⁹⁷ is an apocalyptic number.

It is an amenable number.

442497 is a deficient number, since it is larger than the sum of its proper divisors (246975).

442497 is a wasteful number, since it uses less digits than its factorization.

442497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101 (or 90 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 442497 is about 665.2044798406. The cubic root of 442497 is about 76.2026562683.

It can be divided in two parts, 442 and 497, that added together give a palindrome (939).

The spelling of 442497 in words is "four hundred forty-two thousand, four hundred ninety-seven".