1193985828 has 72 divisors (see below), whose sum is σ = 3500823872. Its totient is φ = 336042432.

The previous prime is 1193985823. The next prime is 1193985853. The reversal of 1193985828 is 8285893911.

It is not an unprimeable number, because it can be changed into a prime (1193985823) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18475 + ... + 52242.

Almost surely, 2^1193985828 is an apocalyptic number.

1193985828 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1193985828 is an abundant number, since it is smaller than the sum of its proper divisors (2306838044).

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

1193985828 is a wasteful number, since it uses less digits than its factorization.

1193985828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70801 (or 70796 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 54.

The square root of 1193985828 is about 34554.1000172194. The cubic root of 1193985828 is about 1060.8803141590.

The spelling of 1193985828 in words is "one billion, one hundred ninety-three million, nine hundred eighty-five thousand, eight hundred twenty-eight".