940637789 has 16 divisors (see below), whose sum is σ = 1163218560. Its totient is φ = 740698560.

The previous prime is 940637783. The next prime is 940637813. The reversal of 940637789 is 987736049.

It is not a de Polignac number, because 940637789 - 2⁴ = 940637773 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 940637789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940637783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5294 + ... + 43695.

It is an arithmetic number, because the mean of its divisors is an integer number (72701160).

Almost surely, 2^940637789 is an apocalyptic number.

It is an amenable number.

940637789 is a deficient number, since it is larger than the sum of its proper divisors (222580771).

940637789 is a wasteful number, since it uses less digits than its factorization.

940637789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49220.

The product of its (nonzero) digits is 2286144, while the sum is 53.

The square root of 940637789 is about 30669.8188615453. The cubic root of 940637789 is about 979.8076080050.

The spelling of 940637789 in words is "nine hundred forty million, six hundred thirty-seven thousand, seven hundred eighty-nine".