4355540021242 has 32 divisors (see below), whose sum is σ = 6646776741504. Its totient is φ = 2140149211200.

The previous prime is 4355540021221. The next prime is 4355540021251. The reversal of 4355540021242 is 2421200455534.

It is a super-2 number, since 2×4355540021242² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 344659348 + ... + 344671984.

It is an arithmetic number, because the mean of its divisors is an integer number (207711773172).

Almost surely, 2^{4355540021242} is an apocalyptic number.

4355540021242 is a deficient number, since it is larger than the sum of its proper divisors (2291236720262).

4355540021242 is a wasteful number, since it uses less digits than its factorization.

4355540021242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20374.

The product of its (nonzero) digits is 192000, while the sum is 37.

Adding to 4355540021242 its reverse (2421200455534), we get a palindrome (6776740476776).

The spelling of 4355540021242 in words is "four trillion, three hundred fifty-five billion, five hundred forty million, twenty-one thousand, two hundred forty-two".