2985440623 has 6 divisors (see below), whose sum is σ = 3281517512. Its totient is φ = 2714036820.

The previous prime is 2985440609. The next prime is 2985440639. The reversal of 2985440623 is 3260445892.

It is a de Polignac number, because none of the positive numbers 2^k-2985440623 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 2985440623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2985440663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12336411 + ... + 12336652.

Almost surely, 2^2985440623 is an apocalyptic number.

2985440623 is a deficient number, since it is larger than the sum of its proper divisors (296076889).

2985440623 is a wasteful number, since it uses less digits than its factorization.

2985440623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24673085 (or 24673074 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 43.

The square root of 2985440623 is about 54639.1857827329. The cubic root of 2985440623 is about 1439.9126462893.

The spelling of 2985440623 in words is "two billion, nine hundred eighty-five million, four hundred forty thousand, six hundred twenty-three".