20416122 has 24 divisors (see below), whose sum is σ = 44361876. Its totient is φ = 6785856.

The previous prime is 20416117. The next prime is 20416141. The reversal of 20416122 is 22161402.

It can be written as a sum of positive squares in 2 ways, for example, as 19793601 + 622521 = 4449^2 + 789^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 20416095 and 20416104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5718 + ... + 8574.

Almost surely, 2^20416122 is an apocalyptic number.

20416122 is an abundant number, since it is smaller than the sum of its proper divisors (23945754).

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

20416122 is a wasteful number, since it uses less digits than its factorization.

20416122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262 (or 3259 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 20416122 is about 4518.4202991754. The cubic root of 20416122 is about 273.3114024972.

Adding to 20416122 its reverse (22161402), we get a palindrome (42577524).

The spelling of 20416122 in words is "twenty million, four hundred sixteen thousand, one hundred twenty-two".