444232432021 has 16 divisors (see below), whose sum is σ = 510824704000. Its totient is φ = 378427130928.

The previous prime is 444232432009. The next prime is 444232432051. The reversal of 444232432021 is 120234232444.

It is not a de Polignac number, because 444232432021 - 2⁵ = 444232431989 is a prime.

It is a super-2 number, since 2×444232432021² (a number of 24 digits) 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 (444232432001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1049440 + ... + 1410598.

It is an arithmetic number, because the mean of its divisors is an integer number (31926544000).

Almost surely, 2^444232432021 is an apocalyptic number.

It is an amenable number.

444232432021 is a deficient number, since it is larger than the sum of its proper divisors (66592271979).

444232432021 is a wasteful number, since it uses less digits than its factorization.

444232432021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362248.

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 444232432021 its reverse (120234232444), we get a palindrome (564466664465).

The spelling of 444232432021 in words is "four hundred forty-four billion, two hundred thirty-two million, four hundred thirty-two thousand, twenty-one".