400040440422242 has 64 divisors (see below), whose sum is σ = 636867546796800. Its totient is φ = 188053471584000.

The previous prime is 400040440422209. The next prime is 400040440422251. The reversal of 400040440422242 is 242224044040004.

It is a super-2 number, since 2×400040440422242² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 400040440422199 and 400040440422208.

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, 35881278884 + ... + 35881290032.

It is an arithmetic number, because the mean of its divisors is an integer number (9951055418700).

Almost surely, 2^{400040440422242} is an apocalyptic number.

400040440422242 is a deficient number, since it is larger than the sum of its proper divisors (236827106374558).

400040440422242 is a wasteful number, since it uses less digits than its factorization.

400040440422242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19179.

The product of its (nonzero) digits is 65536, while the sum is 32.

Adding to 400040440422242 its reverse (242224044040004), we get a palindrome (642264484462246).

The spelling of 400040440422242 in words is "four hundred trillion, forty billion, four hundred forty million, four hundred twenty-two thousand, two hundred forty-two".