8081900 has 18 divisors (see below), whose sum is σ = 17537940. Its totient is φ = 3232720.

The previous prime is 8081849. The next prime is 8081929. The reversal of 8081900 is 91808.

It is a super-2 number, since 2×8081900² = 130634215220000, which contains 22 as substring.

It is a nialpdrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 8081900.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40310 + ... + 40509.

It is an arithmetic number, because the mean of its divisors is an integer number (974330).

Almost surely, 2^8081900 is an apocalyptic number.

It is an amenable number.

8081900 is an abundant number, since it is smaller than the sum of its proper divisors (9456040).

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

8081900 is a wasteful number, since it uses less digits than its factorization.

8081900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80833 (or 80826 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 26.

The square root of 8081900 is about 2842.8682698993. The cubic root of 8081900 is about 200.6801841254.

The spelling of 8081900 in words is "eight million, eighty-one thousand, nine hundred".