2104590 has 48 divisors (see below), whose sum is σ = 5290704. Its totient is φ = 535680.

The previous prime is 2104567. The next prime is 2104591. The reversal of 2104590 is 954012.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2104591) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28794 + ... + 28866.

It is an arithmetic number, because the mean of its divisors is an integer number (110223).

2^2104590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2104590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2645352).

2104590 is an abundant number, since it is smaller than the sum of its proper divisors (3186114).

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

2104590 is a wasteful number, since it uses less digits than its factorization.

2104590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 2104590 is about 1450.7205106429. The cubic root of 2104590 is about 128.1511479451.

The spelling of 2104590 in words is "two million, one hundred four thousand, five hundred ninety".