43440674373 has 12 divisors (see below), whose sum is σ = 63323308620. Its totient is φ = 28694756736.

The previous prime is 43440674353. The next prime is 43440674419. The reversal of 43440674373 is 37347604434.

43440674373 is a `hidden beast` number, since 43 + 440 + 67 + 43 + 73 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 37443411009 + 5997263364 = 193503^2 + 77442^2 .

It is not a de Polignac number, because 43440674373 - 2¹⁴ = 43440657989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43440674353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22140036 + ... + 22141997.

It is an arithmetic number, because the mean of its divisors is an integer number (5276942385).

Almost surely, 2^43440674373 is an apocalyptic number.

It is an amenable number.

43440674373 is a deficient number, since it is larger than the sum of its proper divisors (19882634247).

43440674373 is a wasteful number, since it uses less digits than its factorization.

43440674373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44282148 (or 44282145 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 45.

The spelling of 43440674373 in words is "forty-three billion, four hundred forty million, six hundred seventy-four thousand, three hundred seventy-three".