1938910848 has 64 divisors (see below), whose sum is σ = 5885987520. Its totient is φ = 553973760.

The previous prime is 1938910829. The next prime is 1938910849. The reversal of 1938910848 is 8480198391.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 1938910848.

It is not an unprimeable number, because it can be changed into a prime (1938910849) 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, 357973 + ... + 363348.

It is an arithmetic number, because the mean of its divisors is an integer number (91968555).

Almost surely, 2^1938910848 is an apocalyptic number.

It is an amenable number.

1938910848 is an abundant number, since it is smaller than the sum of its proper divisors (3947076672).

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

1938910848 is an equidigital number, since it uses as much as digits as its factorization.

1938910848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721345 (or 721333 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 51.

The square root of 1938910848 is about 44033.0653940877. The cubic root of 1938910848 is about 1246.9602615574.

The spelling of 1938910848 in words is "one billion, nine hundred thirty-eight million, nine hundred ten thousand, eight hundred forty-eight".