1798023888 has 60 divisors (see below), whose sum is σ = 5078178820. Its totient is φ = 593837568.

The previous prime is 1798023883. The next prime is 1798023889. The reversal of 1798023888 is 8883208971.

It can be written as a sum of positive squares in 2 ways, for example, as 602800704 + 1195223184 = 24552^2 + 34572^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1798023883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41581 + ... + 72972.

Almost surely, 2^1798023888 is an apocalyptic number.

1798023888 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1798023888 is an abundant number, since it is smaller than the sum of its proper divisors (3280154932).

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

1798023888 is a wasteful number, since it uses less digits than its factorization.

1798023888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114676 (or 114667 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 54.

The square root of 1798023888 is about 42403.1117726046. Note that the first 3 decimals coincide. The cubic root of 1798023888 is about 1215.9950838040.

The spelling of 1798023888 in words is "one billion, seven hundred ninety-eight million, twenty-three thousand, eight hundred eighty-eight".