19013426 has 16 divisors (see below), whose sum is σ = 29030400. Its totient is φ = 9338208.

The previous prime is 19013419. The next prime is 19013453. The reversal of 19013426 is 62431091.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19013395 and 19013404.

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 7 ways as a sum of consecutive naturals, for example, 39455 + ... + 39933.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2^19013426 is an apocalyptic number.

19013426 is a deficient number, since it is larger than the sum of its proper divisors (10016974).

19013426 is a wasteful number, since it uses less digits than its factorization.

19013426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 793.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 19013426 is about 4360.4387393931. The cubic root of 19013426 is about 266.9030026358.

The spelling of 19013426 in words is "nineteen million, thirteen thousand, four hundred twenty-six".