44430421432 has 32 divisors (see below), whose sum is σ = 83852496000. Its totient is φ = 22070185984.

The previous prime is 44430421429. The next prime is 44430421439. The reversal of 44430421432 is 23412403444.

It is a junction number, because it is equal to n+sod(n) for n = 44430421394 and 44430421403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (44430421439) 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, 810393 + ... + 863479.

It is an arithmetic number, because the mean of its divisors is an integer number (2620390500).

Almost surely, 2^44430421432 is an apocalyptic number.

It is an amenable number.

44430421432 is a deficient number, since it is larger than the sum of its proper divisors (39422074568).

44430421432 is a wasteful number, since it uses less digits than its factorization.

44430421432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53775 (or 53771 counting only the distinct ones).

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

Adding to 44430421432 its reverse (23412403444), we get a palindrome (67842824876).

The spelling of 44430421432 in words is "forty-four billion, four hundred thirty million, four hundred twenty-one thousand, four hundred thirty-two".