440554231 has 4 divisors (see below), whose sum is σ = 474443032. Its totient is φ = 406665432.

The previous prime is 440554211. The next prime is 440554241. The reversal of 440554231 is 132455044.

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 440554231 - 2⁵ = 440554199 is a prime.

It is a super-2 number, since 2×440554231² = 388176060904002722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 440554231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440554211) 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, 16944381 + ... + 16944406.

It is an arithmetic number, because the mean of its divisors is an integer number (118610758).

Almost surely, 2^440554231 is an apocalyptic number.

440554231 is a deficient number, since it is larger than the sum of its proper divisors (33888801).

440554231 is a wasteful number, since it uses less digits than its factorization.

440554231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33888800.

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 440554231 is about 20989.3837689438. The cubic root of 440554231 is about 760.9097087877.

The spelling of 440554231 in words is "four hundred forty million, five hundred fifty-four thousand, two hundred thirty-one".