20019416 has 16 divisors (see below), whose sum is σ = 37586040. Its totient is φ = 9996480.

The previous prime is 20019403. The next prime is 20019427. The reversal of 20019416 is 61491002.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20019391 and 20019400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8300 + ... + 10436.

Almost surely, 2^20019416 is an apocalyptic number.

It is an amenable number.

20019416 is a deficient number, since it is larger than the sum of its proper divisors (17566624).

20019416 is a wasteful number, since it uses less digits than its factorization.

20019416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3314 (or 3310 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 20019416 is about 4474.3062032007. The cubic root of 20019416 is about 271.5295718043.

The spelling of 20019416 in words is "twenty million, nineteen thousand, four hundred sixteen".