440484469 has 8 divisors (see below), whose sum is σ = 447615000. Its totient is φ = 433406976.

The previous prime is 440484463. The next prime is 440484481. The reversal of 440484469 is 964484044.

It can be written as a sum of positive squares in 4 ways, for example, as 204861969 + 235622500 = 14313^2 + 15350^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 440484469 - 2³ = 440484461 is a prime.

It is a super-2 number, since 2×440484469² = 388053134860423922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440484461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3657 + ... + 29905.

It is an arithmetic number, because the mean of its divisors is an integer number (55951875).

Almost surely, 2^440484469 is an apocalyptic number.

It is an amenable number.

440484469 is a deficient number, since it is larger than the sum of its proper divisors (7130531).

440484469 is a wasteful number, since it uses less digits than its factorization.

440484469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26519.

The product of its (nonzero) digits is 442368, while the sum is 43.

The square root of 440484469 is about 20987.7218630322. The cubic root of 440484469 is about 760.8695431800.

The spelling of 440484469 in words is "four hundred forty million, four hundred eighty-four thousand, four hundred sixty-nine".