440121271 has 4 divisors (see below), whose sum is σ = 440167392. Its totient is φ = 440075152.

The previous prime is 440121259. The next prime is 440121277. The reversal of 440121271 is 172121044.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440121271 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 (440121277) 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, 2830 + ... + 29803.

It is an arithmetic number, because the mean of its divisors is an integer number (110041848).

Almost surely, 2^440121271 is an apocalyptic number.

440121271 is a deficient number, since it is larger than the sum of its proper divisors (46121).

440121271 is a wasteful number, since it uses less digits than its factorization.

440121271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46120.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 440121271 is about 20979.0674482924. The cubic root of 440121271 is about 760.6603626802.

The spelling of 440121271 in words is "four hundred forty million, one hundred twenty-one thousand, two hundred seventy-one".