2591204 has 48 divisors (see below), whose sum is σ = 5806080. Its totient is φ = 982560.

The previous prime is 2591189. The next prime is 2591209. The reversal of 2591204 is 4021952.

2591204 = 187² + 188² + ... + 242².

2591204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2591204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591209) 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, 14387 + ... + 14565.

It is an arithmetic number, because the mean of its divisors is an integer number (120960).

2^2591204 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2591204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2903040).

2591204 is an abundant number, since it is smaller than the sum of its proper divisors (3214876).

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

2591204 is a wasteful number, since it uses less digits than its factorization.

2591204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248 (or 246 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 2591204 is about 1609.7217150800. The cubic root of 2591204 is about 137.3516460535.

It can be divided in two parts, 25 and 91204, that multiplied together give a square (2280100 = 1510²).

The spelling of 2591204 in words is "two million, five hundred ninety-one thousand, two hundred four".