1098450219 has 4 divisors (see below), whose sum is σ = 1464600296. Its totient is φ = 732300144.

The previous prime is 1098450203. The next prime is 1098450233. The reversal of 1098450219 is 9120548901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9120548901 = 3 ⋅3040182967.

It is not a de Polignac number, because 1098450219 - 2⁴ = 1098450203 is a prime.

It is a super-2 number, since 2×1098450219² = 2413185767242295922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098450239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183075034 + ... + 183075039.

It is an arithmetic number, because the mean of its divisors is an integer number (366150074).

Almost surely, 2^1098450219 is an apocalyptic number.

1098450219 is a deficient number, since it is larger than the sum of its proper divisors (366150077).

1098450219 is an equidigital number, since it uses as much as digits as its factorization.

1098450219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366150076.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 1098450219 is about 33142.8758408198. The cubic root of 1098450219 is about 1031.7950972694.

The spelling of 1098450219 in words is "one billion, ninety-eight million, four hundred fifty thousand, two hundred nineteen".