198085038 has 16 divisors (see below), whose sum is σ = 400093776. Its totient is φ = 65374400.

The previous prime is 198085033. The next prime is 198085057. The reversal of 198085038 is 830580891.

It is a super-2 number, since 2×198085038² = 78475364558922888, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198085033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 162831 + ... + 164042.

It is an arithmetic number, because the mean of its divisors is an integer number (25005861).

Almost surely, 2^198085038 is an apocalyptic number.

198085038 is an abundant number, since it is smaller than the sum of its proper divisors (202008738).

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

198085038 is a wasteful number, since it uses less digits than its factorization.

198085038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 326979.

The product of its (nonzero) digits is 69120, while the sum is 42.

The square root of 198085038 is about 14074.2686488499. The cubic root of 198085038 is about 582.9310977966.

The spelling of 198085038 in words is "one hundred ninety-eight million, eighty-five thousand, thirty-eight".