405544412042 has 32 divisors (see below), whose sum is σ = 758473455744. Its totient is φ = 157993329600.

The previous prime is 405544412029. The next prime is 405544412083. The reversal of 405544412042 is 240214445504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 405544411993 and 405544412011.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2339192 + ... + 2506572.

It is an arithmetic number, because the mean of its divisors is an integer number (23702295492).

Almost surely, 2^405544412042 is an apocalyptic number.

405544412042 is a deficient number, since it is larger than the sum of its proper divisors (352929043702).

405544412042 is a wasteful number, since it uses less digits than its factorization.

405544412042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183134.

The product of its (nonzero) digits is 102400, while the sum is 35.

Adding to 405544412042 its reverse (240214445504), we get a palindrome (645758857546).

The spelling of 405544412042 in words is "four hundred five billion, five hundred forty-four million, four hundred twelve thousand, forty-two".