442715 has 24 divisors (see below), whose sum is σ = 670320. Its totient is φ = 278208.

The previous prime is 442703. The next prime is 442721. The reversal of 442715 is 517244.

It is not a de Polignac number, because 442715 - 2⁴ = 442699 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3116 + ... + 3254.

It is an arithmetic number, because the mean of its divisors is an integer number (27930).

2⁴⁴²⁷¹⁵ is an apocalyptic number.

442715 is a deficient number, since it is larger than the sum of its proper divisors (227605).

442715 is a wasteful number, since it uses less digits than its factorization.

442715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 164 counting only the distinct ones).

The product of its digits is 1120, while the sum is 23.

The square root of 442715 is about 665.3683190534. The cubic root of 442715 is about 76.2151681812.

Adding to 442715 its reverse (517244), we get a palindrome (959959).

Subtracting 442715 from its reverse (517244), we obtain a square (74529 = 273²).

The spelling of 442715 in words is "four hundred forty-two thousand, seven hundred fifteen".