4485990 has 16 divisors (see below), whose sum is σ = 10766448. Its totient is φ = 1196256.

The previous prime is 4485983. The next prime is 4485997. The reversal of 4485990 is 995844.

It is an interprime number because it is at equal distance from previous prime (4485983) and next prime (4485997).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4485997) 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 7 ways as a sum of consecutive naturals, for example, 74737 + ... + 74796.

It is an arithmetic number, because the mean of its divisors is an integer number (672903).

Almost surely, 2^4485990 is an apocalyptic number.

4485990 is an abundant number, since it is smaller than the sum of its proper divisors (6280458).

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

4485990 is a wasteful number, since it uses less digits than its factorization.

4485990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149543.

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 4485990 is about 2118.0155806792. The cubic root of 4485990 is about 164.9248509945.

The spelling of 4485990 in words is "four million, four hundred eighty-five thousand, nine hundred ninety".