19198026 has 16 divisors (see below), whose sum is σ = 42662400. Its totient is φ = 6399324.

The previous prime is 19197991. The next prime is 19198057. The reversal of 19198026 is 62089191.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 177706 + ... + 177813.

It is an arithmetic number, because the mean of its divisors is an integer number (2666400).

Almost surely, 2^19198026 is an apocalyptic number.

19198026 is an abundant number, since it is smaller than the sum of its proper divisors (23464374).

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

19198026 is a wasteful number, since it uses less digits than its factorization.

19198026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355530 (or 355524 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 19198026 is about 4381.5552033496. Note that the first 3 decimals coincide. The cubic root of 19198026 is about 267.7640029083.

The spelling of 19198026 in words is "nineteen million, one hundred ninety-eight thousand, twenty-six".