2580398 has 4 divisors (see below), whose sum is σ = 3870600. Its totient is φ = 1290198.

The previous prime is 2580341. The next prime is 2580401. The reversal of 2580398 is 8930852.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 645098 + ... + 645101.

It is an arithmetic number, because the mean of its divisors is an integer number (967650).

2^2580398 is an apocalyptic number.

2580398 is a deficient number, since it is larger than the sum of its proper divisors (1290202).

2580398 is a wasteful number, since it uses less digits than its factorization.

2580398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290201.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 2580398 is about 1606.3617276317. The cubic root of 2580398 is about 137.1604492355.

The spelling of 2580398 in words is "two million, five hundred eighty thousand, three hundred ninety-eight".