939440655 has 48 divisors (see below), whose sum is σ = 1814922720. Its totient is φ = 446736384.

The previous prime is 939440641. The next prime is 939440659. The reversal of 939440655 is 556044939.

It is not a de Polignac number, because 939440655 - 2⁴ = 939440639 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 939440655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939440659) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17782 + ... + 46851.

It is an arithmetic number, because the mean of its divisors is an integer number (37810890).

Almost surely, 2^939440655 is an apocalyptic number.

939440655 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

939440655 is a deficient number, since it is larger than the sum of its proper divisors (875482065).

939440655 is a wasteful number, since it uses less digits than its factorization.

939440655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64680 (or 64677 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 45.

The square root of 939440655 is about 30650.2961649639. The cubic root of 939440655 is about 979.3917699536.

The spelling of 939440655 in words is "nine hundred thirty-nine million, four hundred forty thousand, six hundred fifty-five".