19700016 has 40 divisors (see below), whose sum is σ = 58162944. Its totient is φ = 5628480.

The previous prime is 19699997. The next prime is 19700027. The reversal of 19700016 is 61000791.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28980 + ... + 29651.

Almost surely, 2^19700016 is an apocalyptic number.

19700016 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

19700016 is an abundant number, since it is smaller than the sum of its proper divisors (38462928).

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

19700016 is a wasteful number, since it uses less digits than its factorization.

19700016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58649 (or 58643 counting only the distinct ones).

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 19700016 is about 4438.4700066577. The cubic root of 19700016 is about 270.0777828025.

The spelling of 19700016 in words is "nineteen million, seven hundred thousand, sixteen".