440000231 has 4 divisors (see below), whose sum is σ = 480000264. Its totient is φ = 400000200.

The previous prime is 440000227. The next prime is 440000237. The reversal of 440000231 is 132000044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440000231 - 2² = 440000227 is a prime.

It is a super-2 number, since 2×440000231² = 387200406560106722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440000237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20000000 + ... + 20000021.

It is an arithmetic number, because the mean of its divisors is an integer number (120000066).

Almost surely, 2^440000231 is an apocalyptic number.

440000231 is a deficient number, since it is larger than the sum of its proper divisors (40000033).

440000231 is a wasteful number, since it uses less digits than its factorization.

440000231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40000032.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 440000231 is about 20976.1824696488. The cubic root of 440000231 is about 760.5906252556.

Adding to 440000231 its reverse (132000044), we get a palindrome (572000275).

The spelling of 440000231 in words is "four hundred forty million, two hundred thirty-one", and thus it is an aban number.