4000442441542 has 16 divisors (see below), whose sum is σ = 6069991722480. Its totient is φ = 1977125977728.

The previous prime is 4000442441537. The next prime is 4000442441609. The reversal of 4000442441542 is 2451442440004.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 4000442441498 and 4000442441507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2958663 + ... + 4093234.

It is an arithmetic number, because the mean of its divisors is an integer number (379374482655).

Almost surely, 2^{4000442441542} is an apocalyptic number.

4000442441542 is a deficient number, since it is larger than the sum of its proper divisors (2069549280938).

4000442441542 is a wasteful number, since it uses less digits than its factorization.

4000442441542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7055175.

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 4000442441542 its reverse (2451442440004), we get a palindrome (6451884881546).

The spelling of 4000442441542 in words is "four trillion, four hundred forty-two million, four hundred forty-one thousand, five hundred forty-two".