2580730 has 16 divisors (see below), whose sum is σ = 4663944. Its totient is φ = 1028160.

The previous prime is 2580707. The next prime is 2580737. The reversal of 2580730 is 370852.

It can be written as a sum of positive squares in 4 ways, for example, as 363609 + 2217121 = 603^2 + 1489^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2580695 and 2580704.

It is not an unprimeable number, because it can be changed into a prime (2580737) 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, 3904 + ... + 4516.

2^2580730 is an apocalyptic number.

2580730 is a deficient number, since it is larger than the sum of its proper divisors (2083214).

2580730 is a wasteful number, since it uses less digits than its factorization.

2580730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1041.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2580730 is about 1606.4650634234. The cubic root of 2580730 is about 137.1663314439.

The spelling of 2580730 in words is "two million, five hundred eighty thousand, seven hundred thirty".