20012430 has 16 divisors (see below), whose sum is σ = 48029904. Its totient is φ = 5336640.

The previous prime is 20012423. The next prime is 20012441. The reversal of 20012430 is 3421002.

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 7 ways as a sum of consecutive naturals, for example, 333511 + ... + 333570.

It is an arithmetic number, because the mean of its divisors is an integer number (3001869).

Almost surely, 2^20012430 is an apocalyptic number.

20012430 is an abundant number, since it is smaller than the sum of its proper divisors (28017474).

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

20012430 is a wasteful number, since it uses less digits than its factorization.

20012430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667091.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 20012430 is about 4473.5254553875. The cubic root of 20012430 is about 271.4979836987.

Adding to 20012430 its reverse (3421002), we get a palindrome (23433432).

The spelling of 20012430 in words is "twenty million, twelve thousand, four hundred thirty".