440340121 has 8 divisors (see below), whose sum is σ = 474393024. Its totient is φ = 406313040.

The previous prime is 440340107. The next prime is 440340127. The reversal of 440340121 is 121043044.

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

It is a cyclic number.

It is not a de Polignac number, because 440340121 - 2⁷ = 440339993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440340127) 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, 43110 + ... + 52336.

It is an arithmetic number, because the mean of its divisors is an integer number (59299128).

Almost surely, 2^440340121 is an apocalyptic number.

It is an amenable number.

440340121 is a deficient number, since it is larger than the sum of its proper divisors (34052903).

440340121 is a wasteful number, since it uses less digits than its factorization.

440340121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12911.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 440340121 is about 20984.2827134977. The cubic root of 440340121 is about 760.7864210695.

Adding to 440340121 its reverse (121043044), we get a palindrome (561383165).

The spelling of 440340121 in words is "four hundred forty million, three hundred forty thousand, one hundred twenty-one".