43944736900 has 27 divisors (see below), whose sum is σ = 95364628261. Its totient is φ = 17577056240.

The previous prime is 43944736897. The next prime is 43944736907. The reversal of 43944736900 is 963744934.

It is a happy number.

The square root of 43944736900 is 209630.

It is a perfect power (a square), and thus also a powerful number.

43944736900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 15820105284 + 28124631616 = 125778^2 + 167704^2 .

It is a super-2 number, since 2×43944736900² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43944736907) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2085819 + ... + 2106781.

Almost surely, 2^43944736900 is an apocalyptic number.

43944736900 is the 209630-th square number.

It is an amenable number.

43944736900 is an abundant number, since it is smaller than the sum of its proper divisors (51419891361).

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

43944736900 is an frugal number, since it uses more digits than its factorization.

43944736900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41940 (or 20970 counting only the distinct ones).

The product of its (nonzero) digits is 1959552, while the sum is 49.

Multiplying 43944736900 by its sum of digits (49), we get a square (2153292108100 = 1467410²).

The spelling of 43944736900 in words is "forty-three billion, nine hundred forty-four million, seven hundred thirty-six thousand, nine hundred".