440240241 has 32 divisors (see below), whose sum is σ = 718156800. Its totient is φ = 234273600.

The previous prime is 440240239. The next prime is 440240249. The reversal of 440240241 is 142042044.

It is not a de Polignac number, because 440240241 - 2¹ = 440240239 is a prime.

It is a super-2 number, since 2×440240241² = 387622939591476162, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (440240249) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14191 + ... + 32891.

It is an arithmetic number, because the mean of its divisors is an integer number (22442400).

Almost surely, 2^440240241 is an apocalyptic number.

It is an amenable number.

440240241 is a deficient number, since it is larger than the sum of its proper divisors (277916559).

440240241 is a wasteful number, since it uses less digits than its factorization.

440240241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18789.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 440240241 is about 20981.9027020907. The cubic root of 440240241 is about 760.7288950117.

Adding to 440240241 its reverse (142042044), we get a palindrome (582282285).

The spelling of 440240241 in words is "four hundred forty million, two hundred forty thousand, two hundred forty-one".