406042343605 has 8 divisors (see below), whose sum is σ = 493925481432. Its totient is φ = 320384095488.

The previous prime is 406042343587. The next prime is 406042343611. The reversal of 406042343605 is 506343240604.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 702568036 + 405339775569 = 26506^2 + 636663^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 406042343605 - 2⁵ = 406042343573 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 556222024 + ... + 556222753.

It is an arithmetic number, because the mean of its divisors is an integer number (61740685179).

Almost surely, 2^406042343605 is an apocalyptic number.

It is an amenable number.

406042343605 is a deficient number, since it is larger than the sum of its proper divisors (87883137827).

406042343605 is a wasteful number, since it uses less digits than its factorization.

406042343605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112444855.

The product of its (nonzero) digits is 207360, while the sum is 37.

The spelling of 406042343605 in words is "four hundred six billion, forty-two million, three hundred forty-three thousand, six hundred five".