440230313021 has 8 divisors (see below), whose sum is σ = 441002802240. Its totient is φ = 439458405568.

The previous prime is 440230312969. The next prime is 440230313153. The reversal of 440230313021 is 120313032044.

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 440230313021 - 2¹⁸ = 440230050877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440230313921) 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, 1383365 + ... + 1671573.

It is an arithmetic number, because the mean of its divisors is an integer number (55125350280).

Almost surely, 2^440230313021 is an apocalyptic number.

It is an amenable number.

440230313021 is a deficient number, since it is larger than the sum of its proper divisors (772489219).

440230313021 is a wasteful number, since it uses less digits than its factorization.

440230313021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290883.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 440230313021 its reverse (120313032044), we get a palindrome (560543345065).

The spelling of 440230313021 in words is "four hundred forty billion, two hundred thirty million, three hundred thirteen thousand, twenty-one".