2098220581 has 8 divisors (see below), whose sum is σ = 2121745824. Its totient is φ = 2074809360.

The previous prime is 2098220573. The next prime is 2098220587. The reversal of 2098220581 is 1850228902.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2098220581 - 2³ = 2098220573 is a prime.

It is a super-2 number, since 2×2098220581² = 8805059213063955122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2098220581.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2098220587) 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, 8775 + ... + 65371.

It is an arithmetic number, because the mean of its divisors is an integer number (265218228).

Almost surely, 2^2098220581 is an apocalyptic number.

It is an amenable number.

2098220581 is a deficient number, since it is larger than the sum of its proper divisors (23525243).

2098220581 is a wasteful number, since it uses less digits than its factorization.

2098220581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57011.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 2098220581 is about 45806.3377820144. The cubic root of 2098220581 is about 1280.2173664463.

The spelling of 2098220581 in words is "two billion, ninety-eight million, two hundred twenty thousand, five hundred eighty-one".