445742 has 8 divisors (see below), whose sum is σ = 729432. Its totient is φ = 202600.

The previous prime is 445741. The next prime is 445747. The reversal of 445742 is 247544.

445742 is nontrivially palindromic in base 7.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 4⁴ + 4⁸ + 7⁶ + 5³ + 4⁹ + 2⁵ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 445742.

It is not an unprimeable number, because it can be changed into a prime (445741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10109 + ... + 10152.

It is an arithmetic number, because the mean of its divisors is an integer number (91179).

2⁴⁴⁵⁷⁴² is an apocalyptic number.

445742 is a deficient number, since it is larger than the sum of its proper divisors (283690).

445742 is a wasteful number, since it uses less digits than its factorization.

445742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20274.

The product of its digits is 4480, while the sum is 26.

The square root of 445742 is about 667.6391240783. The cubic root of 445742 is about 76.3884771964.

The spelling of 445742 in words is "four hundred forty-five thousand, seven hundred forty-two".