444233121420 has 96 divisors (see below), whose sum is σ = 1415927278080. Its totient is φ = 103010575360.

The previous prime is 444233121391. The next prime is 444233121439. The reversal of 444233121420 is 24121332444.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14617005 + ... + 14647364.

It is an arithmetic number, because the mean of its divisors is an integer number (14749242480).

Almost surely, 2^444233121420 is an apocalyptic number.

It is an amenable number.

444233121420 is an abundant number, since it is smaller than the sum of its proper divisors (971694156660).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

444233121420 is a wasteful number, since it uses less digits than its factorization.

444233121420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29264415 (or 29264413 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 444233121420 its reverse (24121332444), we get a palindrome (468354453864).

The spelling of 444233121420 in words is "four hundred forty-four billion, two hundred thirty-three million, one hundred twenty-one thousand, four hundred twenty".