6605490 has 32 divisors (see below), whose sum is σ = 15921216. Its totient is φ = 1753920.

The previous prime is 6605479. The next prime is 6605513. The reversal of 6605490 is 945066.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an Ulam number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12369 + ... + 12891.

It is an arithmetic number, because the mean of its divisors is an integer number (497538).

Almost surely, 2^6605490 is an apocalyptic number.

6605490 is an abundant number, since it is smaller than the sum of its proper divisors (9315726).

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

6605490 is a wasteful number, since it uses less digits than its factorization.

6605490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 954.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 6605490 is about 2570.1147834289. The cubic root of 6605490 is about 187.6297413154.

The spelling of 6605490 in words is "six million, six hundred five thousand, four hundred ninety".