4442761 has 4 divisors (see below), whose sum is σ = 4447300. Its totient is φ = 4438224.

The previous prime is 4442743. The next prime is 4442777. The reversal of 4442761 is 1672444.

It is the 861-st star number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 518400 + 3924361 = 720^2 + 1981^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4442761 is a prime.

It is a Duffinian number.

4442761 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4442161) 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, 126 + ... + 2983.

It is an arithmetic number, because the mean of its divisors is an integer number (1111825).

Almost surely, 2^4442761 is an apocalyptic number.

It is an amenable number.

4442761 is a deficient number, since it is larger than the sum of its proper divisors (4539).

4442761 is a wasteful number, since it uses less digits than its factorization.

4442761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4538.

The product of its digits is 5376, while the sum is 28.

The square root of 4442761 is about 2107.7858050571. The cubic root of 4442761 is about 164.3933770121.

The spelling of 4442761 in words is "four million, four hundred forty-two thousand, seven hundred sixty-one".