440122231 has 16 divisors (see below), whose sum is σ = 472928544. Its totient is φ = 408131584.

The previous prime is 440122219. The next prime is 440122247. The reversal of 440122231 is 132221044.

It is a cyclic number.

It is not a de Polignac number, because 440122231 - 2⁷ = 440122103 is a prime.

It is a super-2 number, since 2×440122231² = 387415156440834722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440122199 and 440122208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440122211) 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, 377856 + ... + 379018.

It is an arithmetic number, because the mean of its divisors is an integer number (29558034).

Almost surely, 2^440122231 is an apocalyptic number.

440122231 is a deficient number, since it is larger than the sum of its proper divisors (32806313).

440122231 is a wasteful number, since it uses less digits than its factorization.

440122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1490.

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

The square root of 440122231 is about 20979.0903282292. The cubic root of 440122231 is about 760.6609157349.

Adding to 440122231 its reverse (132221044), we get a palindrome (572343275).

The spelling of 440122231 in words is "four hundred forty million, one hundred twenty-two thousand, two hundred thirty-one".