20194416 has 180 divisors, whose sum is σ = 66462760. Its totient is φ = 5702400.

The previous prime is 20194409. The next prime is 20194507. The reversal of 20194416 is 61449102.

It is a self number, because there is not a number n which added to its sum of digits gives 20194416.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 331026 + ... + 331086.

Almost surely, 2^20194416 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20194416, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33231380).

20194416 is an abundant number, since it is smaller than the sum of its proper divisors (46268344).

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

20194416 is a wasteful number, since it uses less digits than its factorization.

20194416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 20194416 is about 4493.8197560650. The cubic root of 20194416 is about 272.3184706876.

The spelling of 20194416 in words is "twenty million, one hundred ninety-four thousand, four hundred sixteen".