2581298 has 4 divisors (see below), whose sum is σ = 3871950. Its totient is φ = 1290648.

The previous prime is 2581289. The next prime is 2581349. The reversal of 2581298 is 8921852.

2581298 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2271049 + 310249 = 1507^2 + 557^2 .

It is an Ulam number.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 645323 + ... + 645326.

2^2581298 is an apocalyptic number.

2581298 is a deficient number, since it is larger than the sum of its proper divisors (1290652).

2581298 is a wasteful number, since it uses less digits than its factorization.

2581298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290651.

The product of its digits is 11520, while the sum is 35.

The square root of 2581298 is about 1606.6418393656. The cubic root of 2581298 is about 137.1763938114.

The spelling of 2581298 in words is "two million, five hundred eighty-one thousand, two hundred ninety-eight".