2560398 has 16 divisors (see below), whose sum is σ = 5138640. Its totient is φ = 850496.

The previous prime is 2560379. The next prime is 2560399. The reversal of 2560398 is 8930652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2560399) 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, 1786 + ... + 2882.

It is an arithmetic number, because the mean of its divisors is an integer number (321165).

2^2560398 is an apocalyptic number.

2560398 is an abundant number, since it is smaller than the sum of its proper divisors (2578242).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2560398 is a wasteful number, since it uses less digits than its factorization.

2560398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 2560398 is about 1600.1243701663. The cubic root of 2560398 is about 136.8051646421.

The spelling of 2560398 in words is "two million, five hundred sixty thousand, three hundred ninety-eight".