20284440006406 has 16 divisors (see below), whose sum is σ = 32216643858816. Its totient is φ = 9545565398656.

The previous prime is 20284440006379. The next prime is 20284440006407. The reversal of 20284440006406 is 60460004448202.

It is a happy number.

It is a super-2 number, since 2×20284440006406² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20284440006407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4864920 + ... + 8014756.

It is an arithmetic number, because the mean of its divisors is an integer number (2013540241176).

Almost surely, 2^{20284440006406} is an apocalyptic number.

20284440006406 is a deficient number, since it is larger than the sum of its proper divisors (11932203852410).

20284440006406 is a wasteful number, since it uses less digits than its factorization.

20284440006406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3339263.

The product of its (nonzero) digits is 294912, while the sum is 40.

The spelling of 20284440006406 in words is "twenty trillion, two hundred eighty-four billion, four hundred forty million, six thousand, four hundred six".