20416230 has 48 divisors (see below), whose sum is σ = 54525744. Its totient is φ = 5296320.

The previous prime is 20416229. The next prime is 20416243. The reversal of 20416230 is 3261402.

It is a happy number.

20416230 is a `hidden beast` number, since 2 + 0 + 41 + 623 + 0 = 666.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265 + ... + 6395.

It is an arithmetic number, because the mean of its divisors is an integer number (1135953).

Almost surely, 2^20416230 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20416230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27262872).

20416230 is an abundant number, since it is smaller than the sum of its proper divisors (34109514).

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

20416230 is a wasteful number, since it uses less digits than its factorization.

20416230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6181 (or 6178 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20416230 is about 4518.4322502390. The cubic root of 20416230 is about 273.3118844297.

Adding to 20416230 its reverse (3261402), we get a palindrome (23677632).

The spelling of 20416230 in words is "twenty million, four hundred sixteen thousand, two hundred thirty".