40042145460122 has 8 divisors (see below), whose sum is σ = 64683465743316. Its totient is φ = 18480990212352.

The previous prime is 40042145460103. The next prime is 40042145460131. The reversal of 40042145460122 is 22106454124004.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 39721518855001 + 320626605121 = 6302501^2 + 566239^2 .

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

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, 770041258823 + ... + 770041258874.

Almost surely, 2^{40042145460122} is an apocalyptic number.

40042145460122 is a deficient number, since it is larger than the sum of its proper divisors (24641320283194).

40042145460122 is a wasteful number, since it uses less digits than its factorization.

40042145460122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540082517712.

The product of its (nonzero) digits is 61440, while the sum is 35.

Adding to 40042145460122 its reverse (22106454124004), we get a palindrome (62148599584126).

The spelling of 40042145460122 in words is "forty trillion, forty-two billion, one hundred forty-five million, four hundred sixty thousand, one hundred twenty-two".