440104681 has 4 divisors (see below), whose sum is σ = 440154000. Its totient is φ = 440055364.

The previous prime is 440104673. The next prime is 440104697. The reversal of 440104681 is 186401044.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 440104681 - 2³ = 440104673 is a prime.

It is a super-2 number, since 2×440104681² = 387384260476223522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440104601) 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, 7111 + ... + 30508.

It is an arithmetic number, because the mean of its divisors is an integer number (110038500).

Almost surely, 2^440104681 is an apocalyptic number.

It is an amenable number.

440104681 is a deficient number, since it is larger than the sum of its proper divisors (49319).

440104681 is a wasteful number, since it uses less digits than its factorization.

440104681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49318.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 440104681 is about 20978.6720504421. The cubic root of 440104681 is about 760.6508050765.

The spelling of 440104681 in words is "four hundred forty million, one hundred four thousand, six hundred eighty-one".