43938470722 has 4 divisors (see below), whose sum is σ = 65907706086. Its totient is φ = 21969235360.

The previous prime is 43938470717. The next prime is 43938470761. The reversal of 43938470722 is 22707483934.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 41918058121 + 2020412601 = 204739^2 + 44949^2 .

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10984617679 + ... + 10984617682.

Almost surely, 2^43938470722 is an apocalyptic number.

43938470722 is a deficient number, since it is larger than the sum of its proper divisors (21969235364).

43938470722 is a wasteful number, since it uses less digits than its factorization.

43938470722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21969235363.

The product of its (nonzero) digits is 2032128, while the sum is 49.

The spelling of 43938470722 in words is "forty-three billion, nine hundred thirty-eight million, four hundred seventy thousand, seven hundred twenty-two".