16420230 has 48 divisors (see below), whose sum is σ = 43855344. Its totient is φ = 4259520.

The previous prime is 16420223. The next prime is 16420253. The reversal of 16420230 is 3202461.

It is a happy number.

16420230 is a `hidden beast` number, since 1 + 642 + 0 + 23 + 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 pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 865 + ... + 5795.

It is an arithmetic number, because the mean of its divisors is an integer number (913653).

Almost surely, 2^16420230 is an apocalyptic number.

16420230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 16420230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21927672).

16420230 is an abundant number, since it is smaller than the sum of its proper divisors (27435114).

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

16420230 is a wasteful number, since it uses less digits than its factorization.

16420230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4981 (or 4978 counting only the distinct ones).

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

The square root of 16420230 is about 4052.1882976979. The cubic root of 16420230 is about 254.1712425346.

Adding to 16420230 its reverse (3202461), we get a palindrome (19622691).

The spelling of 16420230 in words is "sixteen million, four hundred twenty thousand, two hundred thirty".