20284440006408 has 32 divisors (see below), whose sum is σ = 50711356164960. Its totient is φ = 6761445848960.

The previous prime is 20284440006407. The next prime is 20284440006461. The reversal of 20284440006408 is 80460004448202.

It is a happy number.

It is a super-2 number, since 2×20284440006408² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20284440006408.

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

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2964391 + ... + 7025417.

It is an arithmetic number, because the mean of its divisors is an integer number (1584729880155).

Almost surely, 2^{20284440006408} is an apocalyptic number.

It is an amenable number.

20284440006408 is an abundant number, since it is smaller than the sum of its proper divisors (30426916158552).

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

20284440006408 is a wasteful number, since it uses less digits than its factorization.

20284440006408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4269157 (or 4269153 counting only the distinct ones).

The product of its (nonzero) digits is 393216, while the sum is 42.

The spelling of 20284440006408 in words is "twenty trillion, two hundred eighty-four billion, four hundred forty million, six thousand, four hundred eight".