2938644816 has 40 divisors (see below), whose sum is σ = 7610670624. Its totient is φ = 977074560.

The previous prime is 2938644781. The next prime is 2938644817. The reversal of 2938644816 is 6184468392.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2938644817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58050 + ... + 96161.

Almost surely, 2^2938644816 is an apocalyptic number.

It is an amenable number.

2938644816 is an abundant number, since it is smaller than the sum of its proper divisors (4672025808).

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

2938644816 is a wasteful number, since it uses less digits than its factorization.

2938644816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154619 (or 154613 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 2938644816 is about 54209.2687277739. The cubic root of 2938644816 is about 1432.3496046221.

The spelling of 2938644816 in words is "two billion, nine hundred thirty-eight million, six hundred forty-four thousand, eight hundred sixteen".