198100026 has 32 divisors (see below), whose sum is σ = 440942400. Its totient is φ = 65925360.

The previous prime is 198099983. The next prime is 198100033. The reversal of 198100026 is 620001891.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34660 + ... + 39968.

It is an arithmetic number, because the mean of its divisors is an integer number (13779450).

Almost surely, 2^198100026 is an apocalyptic number.

198100026 is an abundant number, since it is smaller than the sum of its proper divisors (242842374).

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

198100026 is a wasteful number, since it uses less digits than its factorization.

198100026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6011 (or 6005 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 198100026 is about 14074.8010998380. The cubic root of 198100026 is about 582.9457998172.

The spelling of 198100026 in words is "one hundred ninety-eight million, one hundred thousand, twenty-six".