2938949641 has 2 divisors, whose sum is σ = 2938949642. Its totient is φ = 2938949640.

The previous prime is 2938949617. The next prime is 2938949677. The reversal of 2938949641 is 1469498392.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2334822400 + 604127241 = 48320^2 + 24579^2 .

It is a cyclic number.

It is not a de Polignac number, because 2938949641 - 2¹⁹ = 2938425353 is a prime.

It is not a weakly prime, because it can be changed into another prime (2938949441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1469474820 + 1469474821.

It is an arithmetic number, because the mean of its divisors is an integer number (1469474821).

Almost surely, 2^2938949641 is an apocalyptic number.

It is an amenable number.

2938949641 is a deficient number, since it is larger than the sum of its proper divisors (1).

2938949641 is an equidigital number, since it uses as much as digits as its factorization.

2938949641 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3359232, while the sum is 55.

The square root of 2938949641 is about 54212.0802128087. The cubic root of 2938949641 is about 1432.3991286827.

The spelling of 2938949641 in words is "two billion, nine hundred thirty-eight million, nine hundred forty-nine thousand, six hundred forty-one".