1098449 has 4 divisors (see below), whose sum is σ = 1198320. Its totient is φ = 998580.

The previous prime is 1098443. The next prime is 1098451. The reversal of 1098449 is 9448901.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1098449 - 2⁸ = 1098193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098443) 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, 49919 + ... + 49940.

It is an arithmetic number, because the mean of its divisors is an integer number (299580).

2^1098449 is an apocalyptic number.

It is an amenable number.

1098449 is a deficient number, since it is larger than the sum of its proper divisors (99871).

1098449 is an equidigital number, since it uses as much as digits as its factorization.

1098449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99870.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 1098449 is about 1048.0691771062. The cubic root of 1098449 is about 103.1794715593.

It can be divided in two parts, 109 and 8449, that added together give a palindrome (8558).

The spelling of 1098449 in words is "one million, ninety-eight thousand, four hundred forty-nine".