19426268 has 6 divisors (see below), whose sum is σ = 33995976. Its totient is φ = 9713132.

The previous prime is 19426261. The next prime is 19426289. The reversal of 19426268 is 86262491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19426261) by changing a digit.

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 as a sum of consecutive naturals, namely, 2428280 + ... + 2428287.

It is an arithmetic number, because the mean of its divisors is an integer number (5665996).

Almost surely, 2^19426268 is an apocalyptic number.

It is an amenable number.

19426268 is a deficient number, since it is larger than the sum of its proper divisors (14569708).

19426268 is a wasteful number, since it uses less digits than its factorization.

19426268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4856571 (or 4856569 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 19426268 is about 4407.5240214887. The cubic root of 19426268 is about 268.8209585120.

It can be divided in two parts, 194 and 26268, that added together give a palindrome (26462).

The spelling of 19426268 in words is "nineteen million, four hundred twenty-six thousand, two hundred sixty-eight".