1198273900 has 36 divisors (see below), whose sum is σ = 2753214408. Its totient is φ = 451114240.

The previous prime is 1198273861. The next prime is 1198273957. The reversal of 1198273900 is 93728911.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 350734 + ... + 354133.

It is an arithmetic number, because the mean of its divisors is an integer number (76478178).

Almost surely, 2^1198273900 is an apocalyptic number.

1198273900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1198273900 is an abundant number, since it is smaller than the sum of its proper divisors (1554940508).

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

1198273900 is a wasteful number, since it uses less digits than its factorization.

1198273900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704898 (or 704891 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 40.

The square root of 1198273900 is about 34616.0930782201. The cubic root of 1198273900 is about 1062.1488094232.

The spelling of 1198273900 in words is "one billion, one hundred ninety-eight million, two hundred seventy-three thousand, nine hundred".