440480081 has 8 divisors (see below), whose sum is σ = 468486144. Its totient is φ = 412706880.

The previous prime is 440480057. The next prime is 440480083. The reversal of 440480081 is 180084044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440480081 is a prime.

It is a super-2 number, since 2×440480081² = 388045403515533122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440480083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54305 + ... + 61886.

It is an arithmetic number, because the mean of its divisors is an integer number (58560768).

Almost surely, 2^440480081 is an apocalyptic number.

It is an amenable number.

440480081 is a deficient number, since it is larger than the sum of its proper divisors (28006063).

440480081 is a wasteful number, since it uses less digits than its factorization.

440480081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116431.

The product of its (nonzero) digits is 4096, while the sum is 29.

The square root of 440480081 is about 20987.6173254612. The cubic root of 440480081 is about 760.8670166387.

The spelling of 440480081 in words is "four hundred forty million, four hundred eighty thousand, eighty-one".