442901 has 4 divisors (see below), whose sum is σ = 468972. Its totient is φ = 416832.

The previous prime is 442879. The next prime is 442903. The reversal of 442901 is 109244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 358801 + 84100 = 599^2 + 290^2 .

It is a cyclic number.

It is not a de Polignac number, because 442901 - 2⁶ = 442837 is a prime.

It is a super-2 number, since 2×442901² = 392322591602, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13010 + ... + 13043.

It is an arithmetic number, because the mean of its divisors is an integer number (117243).

2⁴⁴²⁹⁰¹ is an apocalyptic number.

It is an amenable number.

442901 is a deficient number, since it is larger than the sum of its proper divisors (26071).

442901 is a wasteful number, since it uses less digits than its factorization.

442901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26070.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 442901 is about 665.5080765851. The cubic root of 442901 is about 76.2258402362.

The spelling of 442901 in words is "four hundred forty-two thousand, nine hundred one".