1888938768 has 40 divisors (see below), whose sum is σ = 4893784000. Its totient is φ = 627836544.

The previous prime is 1888938739. The next prime is 1888938769. The reversal of 1888938768 is 8678398881.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1888938699 and 1888938708.

It is not an unprimeable number, because it can be changed into a prime (1888938769) 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, 39628 + ... + 73131.

It is an arithmetic number, because the mean of its divisors is an integer number (122344600).

Almost surely, 2^1888938768 is an apocalyptic number.

It is an amenable number.

1888938768 is an abundant number, since it is smaller than the sum of its proper divisors (3004845232).

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

1888938768 is a wasteful number, since it uses less digits than its factorization.

1888938768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113119 (or 113113 counting only the distinct ones).

The product of its digits is 37158912, while the sum is 66.

The square root of 1888938768 is about 43461.9231972079. The cubic root of 1888938768 is about 1236.1541371016.

The spelling of 1888938768 in words is "one billion, eight hundred eighty-eight million, nine hundred thirty-eight thousand, seven hundred sixty-eight".