20212430 has 32 divisors (see below), whose sum is σ = 41817600. Its totient is φ = 6890400.

The previous prime is 20212421. The next prime is 20212453. The reversal of 20212430 is 3421202.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a plaindrome in base 16.

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 15 ways as a sum of consecutive naturals, for example, 13205 + ... + 14655.

It is an arithmetic number, because the mean of its divisors is an integer number (1306800).

Almost surely, 2^20212430 is an apocalyptic number.

20212430 is an abundant number, since it is smaller than the sum of its proper divisors (21605170).

20212430 is a wasteful number, since it uses less digits than its factorization.

20212430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1664.

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 20212430 is about 4495.8236175366. The cubic root of 20212430 is about 272.3994185930.

Adding to 20212430 its reverse (3421202), we get a palindrome (23633632).

The spelling of 20212430 in words is "twenty million, two hundred twelve thousand, four hundred thirty".