198156792 has 32 divisors (see below), whose sum is σ = 503516880. Its totient is φ = 64968960.

The previous prime is 198156769. The next prime is 198156823. The reversal of 198156792 is 297651891.

It is a super-2 number, since 2×198156792² = 78532228431462528, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 66213 + ... + 69140.

Almost surely, 2^198156792 is an apocalyptic number.

198156792 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

198156792 is an abundant number, since it is smaller than the sum of its proper divisors (305360088).

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

198156792 is a wasteful number, since it uses less digits than its factorization.

198156792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135423 (or 135419 counting only the distinct ones).

The product of its digits is 272160, while the sum is 48.

The square root of 198156792 is about 14076.8175380659. The cubic root of 198156792 is about 583.0014759683.

The spelling of 198156792 in words is "one hundred ninety-eight million, one hundred fifty-six thousand, seven hundred ninety-two".