20284440006442 has 8 divisors (see below), whose sum is σ = 31475855182500. Its totient is φ = 9792488278944.

The previous prime is 20284440006407. The next prime is 20284440006461. The reversal of 20284440006442 is 24460004448202.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20280332350161 + 4107656281 = 4503369^2 + 64091^2 .

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

It is a super-2 number, since 2×20284440006442² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20284440006395 and 20284440006404.

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, 174865862067 + ... + 174865862182.

Almost surely, 2^{20284440006442} is an apocalyptic number.

20284440006442 is a deficient number, since it is larger than the sum of its proper divisors (11191415176058).

20284440006442 is a wasteful number, since it uses less digits than its factorization.

20284440006442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 349731724280.

The product of its (nonzero) digits is 393216, while the sum is 40.

The spelling of 20284440006442 in words is "twenty trillion, two hundred eighty-four billion, four hundred forty million, six thousand, four hundred forty-two".