1098825939 has 16 divisors (see below), whose sum is σ = 1643699200. Its totient is φ = 725436648.

The previous prime is 1098825919. The next prime is 1098825941. The reversal of 1098825939 is 9395288901.

It is not a de Polignac number, because 1098825939 - 2⁷ = 1098825811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1098825919) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194779 + ... + 200340.

It is an arithmetic number, because the mean of its divisors is an integer number (102731200).

Almost surely, 2^1098825939 is an apocalyptic number.

1098825939 is a deficient number, since it is larger than the sum of its proper divisors (544873261).

1098825939 is a wasteful number, since it uses less digits than its factorization.

1098825939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395231 (or 395225 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 54.

The square root of 1098825939 is about 33148.5435426656. The cubic root of 1098825939 is about 1031.9127241634.

The spelling of 1098825939 in words is "one billion, ninety-eight million, eight hundred twenty-five thousand, nine hundred thirty-nine".