2604398 has 4 divisors (see below), whose sum is σ = 3906600. Its totient is φ = 1302198.

The previous prime is 2604391. The next prime is 2604401. The reversal of 2604398 is 8934062.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2604391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 651098 + ... + 651101.

It is an arithmetic number, because the mean of its divisors is an integer number (976650).

2^2604398 is an apocalyptic number.

2604398 is a deficient number, since it is larger than the sum of its proper divisors (1302202).

2604398 is a wasteful number, since it uses less digits than its factorization.

2604398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1302201.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 2604398 is about 1613.8147353398. The cubic root of 2604398 is about 137.5843757611.

The spelling of 2604398 in words is "two million, six hundred four thousand, three hundred ninety-eight".