2098540 has 24 divisors (see below), whose sum is σ = 4434192. Its totient is φ = 834240.

The previous prime is 2098519. The next prime is 2098541. The reversal of 2098540 is 458902.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 2098499 and 2098508.

It is not an unprimeable number, because it can be changed into a prime (2098541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6175 + ... + 6505.

It is an arithmetic number, because the mean of its divisors is an integer number (184758).

2^2098540 is an apocalyptic number.

2098540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2098540 is an abundant number, since it is smaller than the sum of its proper divisors (2335652).

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

2098540 is a wasteful number, since it uses less digits than its factorization.

2098540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 657 (or 655 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 28.

The square root of 2098540 is about 1448.6338391740. The cubic root of 2098540 is about 128.0282327046.

It can be divided in two parts, 20985 and 40, that added together give a square (21025 = 145²).

The spelling of 2098540 in words is "two million, ninety-eight thousand, five hundred forty".