43218252100 has 27 divisors (see below), whose sum is σ = 93788118487. Its totient is φ = 17286469280.

The previous prime is 43218252089. The next prime is 43218252137. The reversal of 43218252100 is 125281234.

The square root of 43218252100 is 207890.

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

It can be written as a sum of positive squares in 4 ways, for example, as 3652268356 + 39565983744 = 60434^2 + 198912^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2068506 + ... + 2089294.

Almost surely, 2^43218252100 is an apocalyptic number.

43218252100 is the 207890-th square number.

It is an amenable number.

43218252100 is an abundant number, since it is smaller than the sum of its proper divisors (50569866387).

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

43218252100 is an frugal number, since it uses more digits than its factorization.

43218252100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41592 (or 20796 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 28.

The spelling of 43218252100 in words is "forty-three billion, two hundred eighteen million, two hundred fifty-two thousand, one hundred".