940980643 has 8 divisors (see below), whose sum is σ = 992088320. Its totient is φ = 890031240.

The previous prime is 940980641. The next prime is 940980647. The reversal of 940980643 is 346089049.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 940980643 - 2¹ = 940980641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 940980643.

It is not an unprimeable number, because it can be changed into a prime (940980641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27255 + ... + 51232.

It is an arithmetic number, because the mean of its divisors is an integer number (124011040).

Almost surely, 2^940980643 is an apocalyptic number.

940980643 is a deficient number, since it is larger than the sum of its proper divisors (51107677).

940980643 is a wasteful number, since it uses less digits than its factorization.

940980643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79137.

The product of its (nonzero) digits is 186624, while the sum is 43.

The square root of 940980643 is about 30675.4077886505. The cubic root of 940980643 is about 979.9266372265.

The spelling of 940980643 in words is "nine hundred forty million, nine hundred eighty thousand, six hundred forty-three".