440294401 has 4 divisors (see below), whose sum is σ = 447512404. Its totient is φ = 433076400.

The previous prime is 440294389. The next prime is 440294417. The reversal of 440294401 is 104492044.

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 4946176 + 435348225 = 2224^2 + 20865^2 .

It is a cyclic number.

It is not a de Polignac number, because 440294401 - 2⁵ = 440294369 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440294401.

It is not an unprimeable number, because it can be changed into a prime (440294431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3608910 + ... + 3609031.

It is an arithmetic number, because the mean of its divisors is an integer number (111878101).

Almost surely, 2^440294401 is an apocalyptic number.

It is an amenable number.

440294401 is a deficient number, since it is larger than the sum of its proper divisors (7218003).

440294401 is an equidigital number, since it uses as much as digits as its factorization.

440294401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7218002.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 440294401 is about 20983.1932984472. The cubic root of 440294401 is about 760.7600896365.

The spelling of 440294401 in words is "four hundred forty million, two hundred ninety-four thousand, four hundred one".