19404126 has 24 divisors (see below), whose sum is σ = 48048624. Its totient is φ = 5544000.

The previous prime is 19404107. The next prime is 19404131. The reversal of 19404126 is 62140491.

It is a self number, because there is not a number n which added to its sum of digits gives 19404126.

It is a congruent 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 11 ways as a sum of consecutive naturals, for example, 76875 + ... + 77126.

It is an arithmetic number, because the mean of its divisors is an integer number (2002026).

Almost surely, 2^19404126 is an apocalyptic number.

19404126 is an abundant number, since it is smaller than the sum of its proper divisors (28644498).

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

19404126 is a wasteful number, since it uses less digits than its factorization.

19404126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154016 (or 154013 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 19404126 is about 4405.0114642303. The cubic root of 19404126 is about 268.7187859187.

The spelling of 19404126 in words is "nineteen million, four hundred four thousand, one hundred twenty-six".