20198416 has 40 divisors (see below), whose sum is σ = 46675584. Its totient is φ = 8279040.

The previous prime is 20198389. The next prime is 20198419. The reversal of 20198416 is 61489102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20198419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1345 + ... + 6496.

Almost surely, 2^20198416 is an apocalyptic number.

It is an amenable number.

20198416 is an abundant number, since it is smaller than the sum of its proper divisors (26477168).

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

20198416 is a wasteful number, since it uses less digits than its factorization.

20198416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7879 (or 7873 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 20198416 is about 4494.2647897070. The cubic root of 20198416 is about 272.3364492874.

The spelling of 20198416 in words is "twenty million, one hundred ninety-eight thousand, four hundred sixteen".