4609890 has 96 divisors (see below), whose sum is σ = 13343616. Its totient is φ = 1098240.

The previous prime is 4609849. The next prime is 4609897. The reversal of 4609890 is 989064.

It is not an unprimeable number, because it can be changed into a prime (4609897) 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 47 ways as a sum of consecutive naturals, for example, 35125 + ... + 35255.

It is an arithmetic number, because the mean of its divisors is an integer number (138996).

Almost surely, 2^4609890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4609890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6671808).

4609890 is an abundant number, since it is smaller than the sum of its proper divisors (8733726).

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

4609890 is a wasteful number, since it uses less digits than its factorization.

4609890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184 (or 181 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 4609890 is about 2147.0654391518. The cubic root of 4609890 is about 166.4294536512.

The spelling of 4609890 in words is "four million, six hundred nine thousand, eight hundred ninety".