198158802 has 16 divisors (see below), whose sum is σ = 397020960. Its totient is φ = 65935712.

The previous prime is 198158801. The next prime is 198158813. The reversal of 198158802 is 208851891.

It is not an unprimeable number, because it can be changed into a prime (198158801) by changing a digit.

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, 25608 + ... + 32435.

It is an arithmetic number, because the mean of its divisors is an integer number (24813810).

Almost surely, 2^198158802 is an apocalyptic number.

198158802 is an abundant number, since it is smaller than the sum of its proper divisors (198862158).

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

198158802 is a wasteful number, since it uses less digits than its factorization.

198158802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58617.

The product of its (nonzero) digits is 46080, while the sum is 42.

The square root of 198158802 is about 14076.8889318628. Note that the first 3 decimals coincide. The cubic root of 198158802 is about 583.0034471835.

The spelling of 198158802 in words is "one hundred ninety-eight million, one hundred fifty-eight thousand, eight hundred two".