2580690 has 32 divisors (see below), whose sum is σ = 7079040. Its totient is φ = 589824.

The previous prime is 2580689. The next prime is 2580691. The reversal of 2580690 is 960852.

It is an interprime number because it is at equal distance from previous prime (2580689) and next prime (2580691).

It is a super-2 number, since 2×2580690² = 13319921752200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580691) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5935 + ... + 6354.

It is an arithmetic number, because the mean of its divisors is an integer number (221220).

2^2580690 is an apocalyptic number.

2580690 is an abundant number, since it is smaller than the sum of its proper divisors (4498350).

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

2580690 is a wasteful number, since it uses less digits than its factorization.

2580690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12306.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 2580690 is about 1606.4526136802. The cubic root of 2580690 is about 137.1656227708.

The spelling of 2580690 in words is "two million, five hundred eighty thousand, six hundred ninety".