2438821928 has 32 divisors (see below), whose sum is σ = 4779086400. Its totient is φ = 1164565248.

The previous prime is 2438821873. The next prime is 2438821933. The reversal of 2438821928 is 8291288342.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111200 + ... + 131312.

It is an arithmetic number, because the mean of its divisors is an integer number (149346450).

Almost surely, 2^2438821928 is an apocalyptic number.

It is an amenable number.

2438821928 is a deficient number, since it is larger than the sum of its proper divisors (2340264472).

2438821928 is a wasteful number, since it uses less digits than its factorization.

2438821928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20801 (or 20797 counting only the distinct ones).

The product of its digits is 442368, while the sum is 47.

The square root of 2438821928 is about 49384.4300159473. The cubic root of 2438821928 is about 1346.0463986090.

The spelling of 2438821928 in words is "two billion, four hundred thirty-eight million, eight hundred twenty-one thousand, nine hundred twenty-eight".