2819898 has 24 divisors (see below), whose sum is σ = 6260436. Its totient is φ = 916800.

The previous prime is 2819867. The next prime is 2819899. The reversal of 2819898 is 8989182.

2819898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2812329 + 7569 = 1677^2 + 87^2 .

It is an Ulam number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2819899) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1173 + ... + 2648.

2^2819898 is an apocalyptic number.

2819898 is an abundant number, since it is smaller than the sum of its proper divisors (3440538).

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

2819898 is a wasteful number, since it uses less digits than its factorization.

2819898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3870 (or 3867 counting only the distinct ones).

The product of its digits is 82944, while the sum is 45.

The square root of 2819898 is about 1679.2551920420. The cubic root of 2819898 is about 141.2790610318.

The spelling of 2819898 in words is "two million, eight hundred nineteen thousand, eight hundred ninety-eight".