1098989200 has 30 divisors (see below), whose sum is σ = 2640322514. Its totient is φ = 439595520.

The previous prime is 1098989173. The next prime is 1098989233. The reversal of 1098989200 is 29898901.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 6290064 + 1092699136 = 2508^2 + 33056^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1373337 + ... + 1374136.

Almost surely, 2^1098989200 is an apocalyptic number.

1098989200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1098989200 is an abundant number, since it is smaller than the sum of its proper divisors (1541333314).

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

1098989200 is a wasteful number, since it uses less digits than its factorization.

1098989200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747491 (or 2747480 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 1098989200 is about 33151.0060179175. The cubic root of 1098989200 is about 1031.9638280293.

The spelling of 1098989200 in words is "one billion, ninety-eight million, nine hundred eighty-nine thousand, two hundred".