19428376 has 64 divisors (see below), whose sum is σ = 43027200. Its totient is φ = 8131200.

The previous prime is 19428373. The next prime is 19428377. The reversal of 19428376 is 67382491.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19428371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 58531 + ... + 58861.

It is an arithmetic number, because the mean of its divisors is an integer number (672300).

Almost surely, 2^19428376 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19428376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21513600).

19428376 is an abundant number, since it is smaller than the sum of its proper divisors (23598824).

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

19428376 is a wasteful number, since it uses less digits than its factorization.

19428376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400 (or 396 counting only the distinct ones).

The product of its digits is 72576, while the sum is 40.

The square root of 19428376 is about 4407.7631515316. The cubic root of 19428376 is about 268.8306816711.

The spelling of 19428376 in words is "nineteen million, four hundred twenty-eight thousand, three hundred seventy-six".