43442430444 has 144 divisors (see below), whose sum is σ = 131006453760. Its totient is φ = 11876578560.

The previous prime is 43442430419. The next prime is 43442430463. The reversal of 43442430444 is 44403424434.

43442430444 is a `hidden beast` number, since 4 + 344 + 2 + 4 + 304 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43442430399 and 43442430408.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 664027 + ... + 726509.

It is an arithmetic number, because the mean of its divisors is an integer number (909767040).

Almost surely, 2^43442430444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43442430444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65503226880).

43442430444 is an abundant number, since it is smaller than the sum of its proper divisors (87564023316).

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

43442430444 is a wasteful number, since it uses less digits than its factorization.

43442430444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62620 (or 62615 counting only the distinct ones).

The product of its (nonzero) digits is 294912, while the sum is 36.

Adding to 43442430444 its reverse (44403424434), we get a palindrome (87845854878).

The spelling of 43442430444 in words is "forty-three billion, four hundred forty-two million, four hundred thirty thousand, four hundred forty-four".