2600398 has 4 divisors (see below), whose sum is σ = 3900600. Its totient is φ = 1300198.

The previous prime is 2600393. The next prime is 2600407. The reversal of 2600398 is 8930062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 8930062 = 2 ⋅4465031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2600393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650098 + ... + 650101.

It is an arithmetic number, because the mean of its divisors is an integer number (975150).

2^2600398 is an apocalyptic number.

2600398 is a deficient number, since it is larger than the sum of its proper divisors (1300202).

2600398 is a wasteful number, since it uses less digits than its factorization.

2600398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1300201.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 2600398 is about 1612.5749594980. The cubic root of 2600398 is about 137.5139027265.

The spelling of 2600398 in words is "two million, six hundred thousand, three hundred ninety-eight".