2098578 has 16 divisors (see below), whose sum is σ = 4239936. Its totient is φ = 692400.

The previous prime is 2098573. The next prime is 2098609. The reversal of 2098578 is 8758902.

It is not an unprimeable number, because it can be changed into a prime (2098573) 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, 1126 + ... + 2337.

It is an arithmetic number, because the mean of its divisors is an integer number (264996).

2^2098578 is an apocalyptic number.

2098578 is an abundant number, since it is smaller than the sum of its proper divisors (2141358).

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

2098578 is a wasteful number, since it uses less digits than its factorization.

2098578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569.

The product of its (nonzero) digits is 40320, while the sum is 39.

The square root of 2098578 is about 1448.6469549203. The cubic root of 2098578 is about 128.0290054710.

The spelling of 2098578 in words is "two million, ninety-eight thousand, five hundred seventy-eight".