4020444404442 has 48 divisors (see below), whose sum is σ = 9080991129600. Its totient is φ = 1284076764000.

The previous prime is 4020444404419. The next prime is 4020444404453. The reversal of 4020444404442 is 2444044440204.

4020444404442 is a `hidden beast` number, since 4 + 0 + 204 + 4 + 4 + 4 + 0 + 4 + 442 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 4020444404397 and 4020444404406.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35612442 + ... + 35725157.

It is an arithmetic number, because the mean of its divisors is an integer number (189187315200).

Almost surely, 2^{4020444404442} is an apocalyptic number.

4020444404442 is an abundant number, since it is smaller than the sum of its proper divisors (5060546725158).

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

4020444404442 is a wasteful number, since it uses less digits than its factorization.

4020444404442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71337739 (or 71337736 counting only the distinct ones).

The product of its (nonzero) digits is 262144, while the sum is 36.

Adding to 4020444404442 its reverse (2444044440204), we get a palindrome (6464488844646).

The spelling of 4020444404442 in words is "four trillion, twenty billion, four hundred forty-four million, four hundred four thousand, four hundred forty-two".