444243021432 has 32 divisors (see below), whose sum is σ = 1269265776000. Its totient is φ = 126926577504.

The previous prime is 444243021427. The next prime is 444243021479. The reversal of 444243021432 is 234120342444.

It is a super-2 number, since 2×444243021432² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 444243021393 and 444243021402.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1322151682 + ... + 1322152017.

It is an arithmetic number, because the mean of its divisors is an integer number (39664555500).

Almost surely, 2^444243021432 is an apocalyptic number.

444243021432 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

444243021432 is an abundant number, since it is smaller than the sum of its proper divisors (825022754568).

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

444243021432 is a wasteful number, since it uses less digits than its factorization.

444243021432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2644303715 (or 2644303711 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 33.

Adding to 444243021432 its reverse (234120342444), we get a palindrome (678363363876).

The spelling of 444243021432 in words is "four hundred forty-four billion, two hundred forty-three million, twenty-one thousand, four hundred thirty-two".