2938872213 has 20 divisors (see below), whose sum is σ = 4462144588. Its totient is φ = 1927126080.

The previous prime is 2938872163. The next prime is 2938872227. The reversal of 2938872213 is 3122788392.

2938872213 is a `hidden beast` number, since 293 + 88 + 72 + 213 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 145009764 + 2793862449 = 12042^2 + 52857^2 .

It is not a de Polignac number, because 2938872213 - 2⁹ = 2938871701 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2938872913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 292456 + ... + 302337.

Almost surely, 2^2938872213 is an apocalyptic number.

It is an amenable number.

2938872213 is a deficient number, since it is larger than the sum of its proper divisors (1523272375).

2938872213 is an equidigital number, since it uses as much as digits as its factorization.

2938872213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594866 (or 594857 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 2938872213 is about 54211.3660868272. The cubic root of 2938872213 is about 1432.3865494977.

The spelling of 2938872213 in words is "two billion, nine hundred thirty-eight million, eight hundred seventy-two thousand, two hundred thirteen".