19908016 has 20 divisors (see below), whose sum is σ = 39227400. Its totient is φ = 9784832.

The previous prime is 19907999. The next prime is 19908017. The reversal of 19908016 is 61080991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19908017) 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 3 ways as a sum of consecutive naturals, for example, 9601 + ... + 11488.

It is an arithmetic number, because the mean of its divisors is an integer number (1961370).

Almost surely, 2^19908016 is an apocalyptic number.

19908016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19908016 is a deficient number, since it is larger than the sum of its proper divisors (19319384).

19908016 is a wasteful number, since it uses less digits than its factorization.

19908016 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21156 (or 21150 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 34.

The square root of 19908016 is about 4461.8399792014. The cubic root of 19908016 is about 271.0249837399.

The spelling of 19908016 in words is "nineteen million, nine hundred eight thousand, sixteen".