440342161 has 8 divisors (see below), whose sum is σ = 503544704. Its totient is φ = 377213760.

The previous prime is 440342113. The next prime is 440342167. The reversal of 440342161 is 161243044.

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

It is a de Polignac number, because none of the positive numbers 2^k-440342161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440342167) 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, 5160 + ... + 30121.

It is an arithmetic number, because the mean of its divisors is an integer number (62943088).

Almost surely, 2^440342161 is an apocalyptic number.

It is an amenable number.

440342161 is a deficient number, since it is larger than the sum of its proper divisors (63202543).

440342161 is a wasteful number, since it uses less digits than its factorization.

440342161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37071.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 440342161 is about 20984.3313212501. The cubic root of 440342161 is about 760.7875959203.

It can be divided in two parts, 4403 and 42161, that added together give a palindrome (46564).

The spelling of 440342161 in words is "four hundred forty million, three hundred forty-two thousand, one hundred sixty-one".