1098200920 has 32 divisors (see below), whose sum is σ = 2494054800. Its totient is φ = 435173248.

The previous prime is 1098200881. The next prime is 1098200921. The reversal of 1098200920 is 290028901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1098200921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124015 + ... + 132574.

Almost surely, 2^1098200920 is an apocalyptic number.

1098200920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1098200920 is an abundant number, since it is smaller than the sum of its proper divisors (1395853880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1098200920 is a wasteful number, since it uses less digits than its factorization.

1098200920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256707 (or 256703 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 31.

The square root of 1098200920 is about 33139.1146532312. The cubic root of 1098200920 is about 1031.7170342725.

The spelling of 1098200920 in words is "one billion, ninety-eight million, two hundred thousand, nine hundred twenty".