2098291409 has 4 divisors (see below), whose sum is σ = 2098383780. Its totient is φ = 2098199040.

The previous prime is 2098291387. The next prime is 2098291411. The reversal of 2098291409 is 9041928902.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1190595025 + 907696384 = 34505^2 + 30128^2 .

It is a cyclic number.

It is not a de Polignac number, because 2098291409 - 2¹⁶ = 2098225873 is a prime.

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 2098291409.

It is not an unprimeable number, because it can be changed into a prime (2098291439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14249 + ... + 66329.

It is an arithmetic number, because the mean of its divisors is an integer number (524595945).

Almost surely, 2^2098291409 is an apocalyptic number.

It is an amenable number.

2098291409 is a deficient number, since it is larger than the sum of its proper divisors (92371).

2098291409 is an equidigital number, since it uses as much as digits as its factorization.

2098291409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92370.

The product of its (nonzero) digits is 93312, while the sum is 44.

The square root of 2098291409 is about 45807.1108999465. The cubic root of 2098291409 is about 1280.2317713848.

The spelling of 2098291409 in words is "two billion, ninety-eight million, two hundred ninety-one thousand, four hundred nine".