1198200840 has 64 divisors (see below), whose sum is σ = 3710568960. Its totient is φ = 309212160.

The previous prime is 1198200833. The next prime is 1198200841. The reversal of 1198200840 is 480028911.

It is not an unprimeable number, because it can be changed into a prime (1198200841) 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, 157329 + ... + 164768.

It is an arithmetic number, because the mean of its divisors is an integer number (57977640).

Almost surely, 2^1198200840 is an apocalyptic number.

1198200840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198200840 is an abundant number, since it is smaller than the sum of its proper divisors (2512368120).

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

1198200840 is a wasteful number, since it uses less digits than its factorization.

1198200840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322142 (or 322138 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 33.

The square root of 1198200840 is about 34615.0377726213. The cubic root of 1198200840 is about 1062.1272222136.

The spelling of 1198200840 in words is "one billion, one hundred ninety-eight million, two hundred thousand, eight hundred forty".