19098868 has 12 divisors (see below), whose sum is σ = 34054020. Its totient is φ = 9369152.

The previous prime is 19098853. The next prime is 19098887. The reversal of 19098868 is 86889091.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12687844 + 6411024 = 3562^2 + 2532^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44833 + ... + 45256.

It is an arithmetic number, because the mean of its divisors is an integer number (2837835).

Almost surely, 2^19098868 is an apocalyptic number.

It is an amenable number.

19098868 is a deficient number, since it is larger than the sum of its proper divisors (14955152).

19098868 is a wasteful number, since it uses less digits than its factorization.

19098868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90146 (or 90144 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 49.

The square root of 19098868 is about 4370.2251658238. The cubic root of 19098868 is about 267.3022056627.

The spelling of 19098868 in words is "nineteen million, ninety-eight thousand, eight hundred sixty-eight".