1198152788 has 24 divisors (see below), whose sum is σ = 2405163264. Its totient is φ = 511596000.

The previous prime is 1198152763. The next prime is 1198152793. The reversal of 1198152788 is 8872518911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71363 + ... + 86538.

It is an arithmetic number, because the mean of its divisors is an integer number (100215136).

Almost surely, 2^1198152788 is an apocalyptic number.

It is an amenable number.

1198152788 is an abundant number, since it is smaller than the sum of its proper divisors (1207010476).

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

1198152788 is a wasteful number, since it uses less digits than its factorization.

1198152788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158183 (or 158181 counting only the distinct ones).

The product of its digits is 322560, while the sum is 50.

The square root of 1198152788 is about 34614.3436742631. The cubic root of 1198152788 is about 1062.1130236982.

The spelling of 1198152788 in words is "one billion, one hundred ninety-eight million, one hundred fifty-two thousand, seven hundred eighty-eight".