1938912048 has 120 divisors (see below), whose sum is σ = 5530423808. Its totient is φ = 634023936.

The previous prime is 1938911993. The next prime is 1938912061. The reversal of 1938912048 is 8402198391.

It is a junction number, because it is equal to n+sod(n) for n = 1938911994 and 1938912012.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1773390 + ... + 1774482.

Almost surely, 2^1938912048 is an apocalyptic number.

1938912048 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1938912048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2765211904).

1938912048 is an abundant number, since it is smaller than the sum of its proper divisors (3591511760).

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

1938912048 is a wasteful number, since it uses less digits than its factorization.

1938912048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1322 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 45.

The square root of 1938912048 is about 44033.0790202093. The cubic root of 1938912048 is about 1246.9605188070.

The spelling of 1938912048 in words is "one billion, nine hundred thirty-eight million, nine hundred twelve thousand, forty-eight".