40042200020442 has 64 divisors (see below), whose sum is σ = 81905675212800. Its totient is φ = 13047726706560.

The previous prime is 40042200020377. The next prime is 40042200020453. The reversal of 40042200020442 is 24402000224004.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23798017 + ... + 25424987.

It is an arithmetic number, because the mean of its divisors is an integer number (1279776175200).

Almost surely, 2^{40042200020442} is an apocalyptic number.

40042200020442 is an abundant number, since it is smaller than the sum of its proper divisors (41863475192358).

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

40042200020442 is a wasteful number, since it uses less digits than its factorization.

40042200020442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627571.

The product of its (nonzero) digits is 4096, while the sum is 24.

Adding to 40042200020442 its reverse (24402000224004), we get a palindrome (64444200244446).

The spelling of 40042200020442 in words is "forty trillion, forty-two billion, two hundred million, twenty thousand, four hundred forty-two".