198628826 has 16 divisors (see below), whose sum is σ = 326386368. Its totient is φ = 89908800.

The previous prime is 198628823. The next prime is 198628879. The reversal of 198628826 is 628826891.

It is not an unprimeable number, because it can be changed into a prime (198628823) 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, 13430 + ... + 24033.

It is an arithmetic number, because the mean of its divisors is an integer number (20399148).

Almost surely, 2^198628826 is an apocalyptic number.

198628826 is a deficient number, since it is larger than the sum of its proper divisors (127757542).

198628826 is a wasteful number, since it uses less digits than its factorization.

198628826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37717.

The product of its digits is 663552, while the sum is 50.

The square root of 198628826 is about 14093.5739257294. The cubic root of 198628826 is about 583.4640360910.

The spelling of 198628826 in words is "one hundred ninety-eight million, six hundred twenty-eight thousand, eight hundred twenty-six".