8081290 has 32 divisors (see below), whose sum is σ = 17604864. Its totient is φ = 2607360.

The previous prime is 8081287. The next prime is 8081299. The reversal of 8081290 is 921808.

It is not an unprimeable number, because it can be changed into a prime (8081299) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2206 + ... + 4585.

It is an arithmetic number, because the mean of its divisors is an integer number (550152).

Almost surely, 2^8081290 is an apocalyptic number.

8081290 is an abundant number, since it is smaller than the sum of its proper divisors (9523574).

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

8081290 is a wasteful number, since it uses less digits than its factorization.

8081290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6822.

The product of its (nonzero) digits is 1152, while the sum is 28.

The square root of 8081290 is about 2842.7609818625. The cubic root of 8081290 is about 200.6751350655.

The spelling of 8081290 in words is "eight million, eighty-one thousand, two hundred ninety".