2938448857 has 8 divisors (see below), whose sum is σ = 3099051360. Its totient is φ = 2778441120.

The previous prime is 2938448837. The next prime is 2938448893. The reversal of 2938448857 is 7588448392.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2938448857 - 2⁷ = 2938448729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2938448837) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 138523 + ... + 158320.

It is an arithmetic number, because the mean of its divisors is an integer number (387381420).

Almost surely, 2^2938448857 is an apocalyptic number.

It is an amenable number.

2938448857 is a deficient number, since it is larger than the sum of its proper divisors (160602503).

2938448857 is a wasteful number, since it uses less digits than its factorization.

2938448857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297383.

The product of its digits is 15482880, while the sum is 58.

The square root of 2938448857 is about 54207.4612668773. The cubic root of 2938448857 is about 1432.3177659058.

The spelling of 2938448857 in words is "two billion, nine hundred thirty-eight million, four hundred forty-eight thousand, eight hundred fifty-seven".