19309422 has 24 divisors (see below), whose sum is σ = 42450408. Its totient is φ = 5851120.

The previous prime is 19309403. The next prime is 19309429. The reversal of 19309422 is 22490391.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 19309422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19309429) 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 in 11 ways as a sum of consecutive naturals, for example, 12573 + ... + 14024.

It is an arithmetic number, because the mean of its divisors is an integer number (1768767).

Almost surely, 2^19309422 is an apocalyptic number.

19309422 is an abundant number, since it is smaller than the sum of its proper divisors (23140986).

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

19309422 is a wasteful number, since it uses less digits than its factorization.

19309422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26624 (or 26613 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 30.

The square root of 19309422 is about 4394.2487412526. The cubic root of 19309422 is about 268.2809021006.

The spelling of 19309422 in words is "nineteen million, three hundred nine thousand, four hundred twenty-two".