80018800 has 60 divisors (see below), whose sum is σ = 193253256. Its totient is φ = 31840000.

The previous prime is 80018797. The next prime is 80018831. The reversal of 80018800 is 881008.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 100002 + ... + 100798.

Almost surely, 2^80018800 is an apocalyptic number.

80018800 is a gapful number since it is divisible by the number (80) 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 80018800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96626628).

80018800 is an abundant number, since it is smaller than the sum of its proper divisors (113234456).

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

80018800 is a wasteful number, since it uses less digits than its factorization.

80018800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1066 (or 1055 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 80018800 is about 8945.3228002124. The cubic root of 80018800 is about 430.9206881729.

Adding to 80018800 its reverse (881008), we get a palindrome (80899808).

It can be divided in two parts, 800 and 18800, that added together give a square (19600 = 140²).

The spelling of 80018800 in words is "eighty million, eighteen thousand, eight hundred".