405042542022 has 64 divisors (see below), whose sum is σ = 837507548160. Its totient is φ = 130517688576.

The previous prime is 405042541997. The next prime is 405042542039. The reversal of 405042542022 is 220245240504.

It is a super-3 number, since 3×405042542022³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

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, 25014613 + ... + 25030799.

It is an arithmetic number, because the mean of its divisors is an integer number (13086055440).

Almost surely, 2^405042542022 is an apocalyptic number.

405042542022 is an abundant number, since it is smaller than the sum of its proper divisors (432465006138).

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

405042542022 is a wasteful number, since it uses less digits than its factorization.

405042542022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17325.

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 405042542022 its reverse (220245240504), we get a palindrome (625287782526).

The spelling of 405042542022 in words is "four hundred five billion, forty-two million, five hundred forty-two thousand, twenty-two".