440604001 has 4 divisors (see below), whose sum is σ = 440999572. Its totient is φ = 440208432.

The previous prime is 440603981. The next prime is 440604013. The reversal of 440604001 is 100406044.

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 205779025 + 234824976 = 14345^2 + 15324^2 .

It is a cyclic number.

It is not a de Polignac number, because 440604001 - 2¹³ = 440595809 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 440604001.

It is not an unprimeable number, because it can be changed into a prime (440604041) 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, 196110 + ... + 198343.

It is an arithmetic number, because the mean of its divisors is an integer number (110249893).

Almost surely, 2^440604001 is an apocalyptic number.

It is an amenable number.

440604001 is a deficient number, since it is larger than the sum of its proper divisors (395571).

440604001 is a wasteful number, since it uses less digits than its factorization.

440604001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395570.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440604001 is about 20990.5693348227. The cubic root of 440604001 is about 760.9383613709.

The spelling of 440604001 in words is "four hundred forty million, six hundred four thousand, one".