198888074 has 16 divisors (see below), whose sum is σ = 371946816. Its totient is φ = 77488800.

The previous prime is 198888073. The next prime is 198888077. The reversal of 198888074 is 470888891.

It is not an unprimeable number, because it can be changed into a prime (198888073) 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, 645587 + ... + 645894.

It is an arithmetic number, because the mean of its divisors is an integer number (23246676).

Almost surely, 2^198888074 is an apocalyptic number.

198888074 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

198888074 is a deficient number, since it is larger than the sum of its proper divisors (173058742).

198888074 is a wasteful number, since it uses less digits than its factorization.

198888074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291501.

The product of its (nonzero) digits is 1032192, while the sum is 53.

The square root of 198888074 is about 14102.7683098036. The cubic root of 198888074 is about 583.7177691916.

The spelling of 198888074 in words is "one hundred ninety-eight million, eight hundred eighty-eight thousand, seventy-four".