2591022 has 32 divisors (see below), whose sum is σ = 6048000. Its totient is φ = 739704.

The previous prime is 2590997. The next prime is 2591023. The reversal of 2591022 is 2201952.

2591022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 2591022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2591023) 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, 1429 + ... + 2687.

It is an arithmetic number, because the mean of its divisors is an integer number (189000).

2^2591022 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2591022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3024000).

2591022 is an abundant number, since it is smaller than the sum of its proper divisors (3456978).

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

2591022 is a wasteful number, since it uses less digits than its factorization.

2591022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1285 (or 1271 counting only the distinct ones).

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

The square root of 2591022 is about 1609.6651825768. The cubic root of 2591022 is about 137.3484302273.

Adding to 2591022 its reverse (2201952), we get a palindrome (4792974).

The spelling of 2591022 in words is "two million, five hundred ninety-one thousand, twenty-two".