20282406 has 8 divisors (see below), whose sum is σ = 40564824. Its totient is φ = 6760800.

The previous prime is 20282399. The next prime is 20282419. The reversal of 20282406 is 60428202.

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

20282406 is an admirable number.

It is a super-2 number, since 2×20282406² = 822751986297672, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 3 ways as a sum of consecutive naturals, for example, 1690195 + ... + 1690206.

It is an arithmetic number, because the mean of its divisors is an integer number (5070603).

Almost surely, 2^20282406 is an apocalyptic number.

20282406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20282406 is a wasteful number, since it uses less digits than its factorization.

20282406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3380406.

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20282406 is about 4503.5992272848. The cubic root of 20282406 is about 272.7134080022.

The spelling of 20282406 in words is "twenty million, two hundred eighty-two thousand, four hundred six".