1098409263 has 32 divisors (see below), whose sum is σ = 1705282560. Its totient is φ = 615928320.

The previous prime is 1098409261. The next prime is 1098409297. The reversal of 1098409263 is 3629048901.

It is not a de Polignac number, because 1098409263 - 2¹ = 1098409261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098409261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 339831 + ... + 343047.

It is an arithmetic number, because the mean of its divisors is an integer number (53290080).

Almost surely, 2^1098409263 is an apocalyptic number.

1098409263 is a deficient number, since it is larger than the sum of its proper divisors (606873297).

1098409263 is a wasteful number, since it uses less digits than its factorization.

1098409263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3527.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 1098409263 is about 33142.2579647193. The cubic root of 1098409263 is about 1031.7822735278.

The spelling of 1098409263 in words is "one billion, ninety-eight million, four hundred nine thousand, two hundred sixty-three".