444042461 has 4 divisors (see below), whose sum is σ = 459354300. Its totient is φ = 428730624.

The previous prime is 444042383. The next prime is 444042493. The reversal of 444042461 is 164240444.

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 359292025 + 84750436 = 18955^2 + 9206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-444042461 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 15311809 = 444042461 / (4 + 4 + 4 + 0 + 4 + 2 + 4 + 6 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444042161) 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, 7655876 + ... + 7655933.

It is an arithmetic number, because the mean of its divisors is an integer number (114838575).

Almost surely, 2^444042461 is an apocalyptic number.

It is an amenable number.

444042461 is a deficient number, since it is larger than the sum of its proper divisors (15311839).

444042461 is a wasteful number, since it uses less digits than its factorization.

444042461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15311838.

The product of its (nonzero) digits is 12288, while the sum is 29.

The square root of 444042461 is about 21072.3150365592. The cubic root of 444042461 is about 762.9126808813.

The spelling of 444042461 in words is "four hundred forty-four million, forty-two thousand, four hundred sixty-one".