43666674040 has 32 divisors (see below), whose sum is σ = 107181837360. Its totient is φ = 15878790400.

The previous prime is 43666674031. The next prime is 43666674047. The reversal of 43666674040 is 4047666634.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43666674047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49620781 + ... + 49621660.

Almost surely, 2^43666674040 is an apocalyptic number.

43666674040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43666674040 is an abundant number, since it is smaller than the sum of its proper divisors (63515163320).

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

43666674040 is a wasteful number, since it uses less digits than its factorization.

43666674040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99242463 (or 99242459 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 46.

The spelling of 43666674040 in words is "forty-three billion, six hundred sixty-six million, six hundred seventy-four thousand, forty".