440760661 has 16 divisors (see below), whose sum is σ = 502640640. Its totient is φ = 382579120.

The previous prime is 440760637. The next prime is 440760731. The reversal of 440760661 is 166067044.

It is a happy number.

It is not a de Polignac number, because 440760661 - 2⁵ = 440760629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440760611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 180696 + ... + 183118.

It is an arithmetic number, because the mean of its divisors is an integer number (31415040).

Almost surely, 2^440760661 is an apocalyptic number.

It is an amenable number.

440760661 is a deficient number, since it is larger than the sum of its proper divisors (61879979).

440760661 is a wasteful number, since it uses less digits than its factorization.

440760661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3176.

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 440760661 is about 20994.3006789938. The cubic root of 440760661 is about 761.0285364319.

The spelling of 440760661 in words is "four hundred forty million, seven hundred sixty thousand, six hundred sixty-one".