1098843399 has 12 divisors (see below), whose sum is σ = 1680584256. Its totient is φ = 689470272.

The previous prime is 1098843367. The next prime is 1098843401. The reversal of 1098843399 is 9933488901.

It is not a de Polignac number, because 1098843399 - 2⁵ = 1098843367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098843899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3590839 + ... + 3591144.

It is an arithmetic number, because the mean of its divisors is an integer number (140048688).

Almost surely, 2^1098843399 is an apocalyptic number.

1098843399 is a deficient number, since it is larger than the sum of its proper divisors (581740857).

1098843399 is a wasteful number, since it uses less digits than its factorization.

1098843399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7182006 (or 7182003 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The square root of 1098843399 is about 33148.8069016066. The cubic root of 1098843399 is about 1031.9181897244.

The spelling of 1098843399 in words is "one billion, ninety-eight million, eight hundred forty-three thousand, three hundred ninety-nine".