20286430 has 8 divisors (see below), whose sum is σ = 36515592. Its totient is φ = 8114568.

The previous prime is 20286421. The next prime is 20286443. The reversal of 20286430 is 3468202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 20286395 and 20286404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1014312 + ... + 1014331.

It is an arithmetic number, because the mean of its divisors is an integer number (4564449).

Almost surely, 2^20286430 is an apocalyptic number.

20286430 is a deficient number, since it is larger than the sum of its proper divisors (16229162).

20286430 is a wasteful number, since it uses less digits than its factorization.

20286430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2028650.

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 20286430 is about 4504.0459589129. The cubic root of 20286430 is about 272.7314421248.

The spelling of 20286430 in words is "twenty million, two hundred eighty-six thousand, four hundred thirty".