2580949 has 8 divisors (see below), whose sum is σ = 2961728. Its totient is φ = 2203200.

The previous prime is 2580937. The next prime is 2580953. The reversal of 2580949 is 9490852.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2580949 - 2⁵ = 2580917 is a prime.

It is a super-2 number, since 2×2580949² = 13322595481202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1549 + ... + 2749.

It is an arithmetic number, because the mean of its divisors is an integer number (370216).

2^2580949 is an apocalyptic number.

It is an amenable number.

2580949 is a deficient number, since it is larger than the sum of its proper divisors (380779).

2580949 is a wasteful number, since it uses less digits than its factorization.

2580949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515.

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 2580949 is about 1606.5332240573. The cubic root of 2580949 is about 137.1702112992.

Subtracting 2580949 from its reverse (9490852), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2580949 in words is "two million, five hundred eighty thousand, nine hundred forty-nine".