19378016 has 24 divisors (see below), whose sum is σ = 43601040. Its totient is φ = 8304768.

The previous prime is 19378001. The next prime is 19378067. The reversal of 19378016 is 61087391.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 43031 + ... + 43478.

It is an arithmetic number, because the mean of its divisors is an integer number (1816710).

Almost surely, 2^19378016 is an apocalyptic number.

19378016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19378016 is an abundant number, since it is smaller than the sum of its proper divisors (24223024).

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

19378016 is an equidigital number, since it uses as much as digits as its factorization.

19378016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86526 (or 86518 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 19378016 is about 4402.0467966618. The cubic root of 19378016 is about 268.5982033709.

The spelling of 19378016 in words is "nineteen million, three hundred seventy-eight thousand, sixteen".