440160661 has 4 divisors (see below), whose sum is σ = 454359424. Its totient is φ = 425961900.

The previous prime is 440160653. The next prime is 440160697. The reversal of 440160661 is 166061044.

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.

It is a cyclic number.

It is not a de Polignac number, because 440160661 - 2³ = 440160653 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 (440160641) 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, 7099335 + ... + 7099396.

It is an arithmetic number, because the mean of its divisors is an integer number (113589856).

Almost surely, 2^440160661 is an apocalyptic number.

It is an amenable number.

440160661 is a deficient number, since it is larger than the sum of its proper divisors (14198763).

440160661 is a wasteful number, since it uses less digits than its factorization.

440160661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14198762.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 440160661 is about 20980.0062202088. The cubic root of 440160661 is about 760.6830545455.

The spelling of 440160661 in words is "four hundred forty million, one hundred sixty thousand, six hundred sixty-one".