8005490 has 8 divisors (see below), whose sum is σ = 14409900. Its totient is φ = 3202192.

The previous prime is 8005483. The next prime is 8005493. The reversal of 8005490 is 945008.

It can be written as a sum of positive squares in 2 ways, for example, as 6775609 + 1229881 = 2603^2 + 1109^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (8005493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 400265 + ... + 400284.

Almost surely, 2^8005490 is an apocalyptic number.

8005490 is a deficient number, since it is larger than the sum of its proper divisors (6404410).

8005490 is a wasteful number, since it uses less digits than its factorization.

8005490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800556.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 8005490 is about 2829.3974623584. The cubic root of 8005490 is about 200.0457395387.

The spelling of 8005490 in words is "eight million, five thousand, four hundred ninety".