16220430 has 48 divisors (see below), whose sum is σ = 43321824. Its totient is φ = 4207680.

The previous prime is 16220429. The next prime is 16220453. The reversal of 16220430 is 3402261.

It is a happy number.

16220430 is a `hidden beast` number, since 1 + 622 + 0 + 43 + 0 = 666.

16220430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

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, 895 + ... + 5765.

It is an arithmetic number, because the mean of its divisors is an integer number (902538).

Almost surely, 2^16220430 is an apocalyptic number.

16220430 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 16220430, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21660912).

16220430 is an abundant number, since it is smaller than the sum of its proper divisors (27101394).

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

16220430 is a wasteful number, since it uses less digits than its factorization.

16220430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4921 (or 4918 counting only the distinct ones).

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

The square root of 16220430 is about 4027.4594970030. The cubic root of 16220430 is about 253.1361211392.

Adding to 16220430 its reverse (3402261), we get a palindrome (19622691).

The spelling of 16220430 in words is "sixteen million, two hundred twenty thousand, four hundred thirty".