40402402044242 has 64 divisors (see below), whose sum is σ = 70286390634240. Its totient is φ = 17061070093056.

The previous prime is 40402402044227. The next prime is 40402402044247. The reversal of 40402402044242 is 24244020420404.

It is a super-3 number, since 3×40402402044242³ (a number of 42 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40402402044199 and 40402402044208.

It is not an unprimeable number, because it can be changed into a prime (40402402044247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 197409428 + ... + 197613984.

It is an arithmetic number, because the mean of its divisors is an integer number (1098224853660).

Almost surely, 2^{40402402044242} is an apocalyptic number.

40402402044242 is a deficient number, since it is larger than the sum of its proper divisors (29883988589998).

40402402044242 is a wasteful number, since it uses less digits than its factorization.

40402402044242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205395.

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

Adding to 40402402044242 its reverse (24244020420404), we get a palindrome (64646422464646).

The spelling of 40402402044242 in words is "forty trillion, four hundred two billion, four hundred two million, forty-four thousand, two hundred forty-two".