5605990 has 32 divisors (see below), whose sum is σ = 11249280. Its totient is φ = 1997184.

The previous prime is 5605949. The next prime is 5605991. The reversal of 5605990 is 995065.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605991) by changing a digit.

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, 3027 + ... + 4513.

It is an arithmetic number, because the mean of its divisors is an integer number (351540).

Almost surely, 2^5605990 is an apocalyptic number.

5605990 is an abundant number, since it is smaller than the sum of its proper divisors (5643290).

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

5605990 is a wasteful number, since it uses less digits than its factorization.

5605990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1536.

The product of its (nonzero) digits is 12150, while the sum is 34.

The square root of 5605990 is about 2367.6971934772. The cubic root of 5605990 is about 177.6440937983.

The spelling of 5605990 in words is "five million, six hundred five thousand, nine hundred ninety".