2591028 has 60 divisors (see below), whose sum is σ = 7399392. Its totient is φ = 784080.

The previous prime is 2591027. The next prime is 2591041. The reversal of 2591028 is 8201952.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2590992 and 2591010.

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 polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3201 + ... + 3927.

2^2591028 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 2591028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3699696).

2591028 is an abundant number, since it is smaller than the sum of its proper divisors (4808364).

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

2591028 is a wasteful number, since it uses less digits than its factorization.

2591028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 743 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 2591028 is about 1609.6670463173. The cubic root of 2591028 is about 137.3485362460.

The spelling of 2591028 in words is "two million, five hundred ninety-one thousand, twenty-eight".