331440223 has 8 divisors (see below), whose sum is σ = 336920960. Its totient is φ = 325975320.

The previous prime is 331440209. The next prime is 331440233. The reversal of 331440223 is 322044133.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 331440223 - 2⁹ = 331439711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331440194 and 331440203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331440233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42718 + ... + 49876.

It is an arithmetic number, because the mean of its divisors is an integer number (42115120).

Almost surely, 2^331440223 is an apocalyptic number.

331440223 is a deficient number, since it is larger than the sum of its proper divisors (5480737).

331440223 is an equidigital number, since it uses as much as digits as its factorization.

331440223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7917.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 331440223 is about 18205.4998008843. The cubic root of 331440223 is about 692.0461721729.

Adding to 331440223 its reverse (322044133), we get a palindrome (653484356).

The spelling of 331440223 in words is "three hundred thirty-one million, four hundred forty thousand, two hundred twenty-three".