441794509 has 4 divisors (see below), whose sum is σ = 475778716. Its totient is φ = 407810304.

The previous prime is 441794491. The next prime is 441794533. The reversal of 441794509 is 905497144.

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 243266409 + 198528100 = 15597^2 + 14090^2 .

It is a cyclic number.

It is not a de Polignac number, because 441794509 - 2¹⁵ = 441761741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (441794569) 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, 16992084 + ... + 16992109.

It is an arithmetic number, because the mean of its divisors is an integer number (118944679).

Almost surely, 2^441794509 is an apocalyptic number.

It is an amenable number.

441794509 is a deficient number, since it is larger than the sum of its proper divisors (33984207).

441794509 is a wasteful number, since it uses less digits than its factorization.

441794509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33984206.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 441794509 is about 21018.9083684191. The cubic root of 441794509 is about 761.6230945350.

The spelling of 441794509 in words is "four hundred forty-one million, seven hundred ninety-four thousand, five hundred nine".