19426898 has 8 divisors (see below), whose sum is σ = 29257200. Its totient is φ = 9674500.

The previous prime is 19426889. The next prime is 19426921. The reversal of 19426898 is 89862491.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18848 + ... + 19851.

It is an arithmetic number, because the mean of its divisors is an integer number (3657150).

Almost surely, 2^19426898 is an apocalyptic number.

19426898 is a deficient number, since it is larger than the sum of its proper divisors (9830302).

19426898 is a wasteful number, since it uses less digits than its factorization.

19426898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38952.

The product of its digits is 248832, while the sum is 47.

The square root of 19426898 is about 4407.5954896065. The cubic root of 19426898 is about 268.8238644634.

The spelling of 19426898 in words is "nineteen million, four hundred twenty-six thousand, eight hundred ninety-eight".