406558042 has 16 divisors (see below), whose sum is σ = 670068000. Its totient is φ = 183468240.

The previous prime is 406558013. The next prime is 406558057. The reversal of 406558042 is 240855604.

It is a junction number, because it is equal to n+sod(n) for n = 406557989 and 406558007.

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, 63417 + ... + 69532.

It is an arithmetic number, because the mean of its divisors is an integer number (41879250).

Almost surely, 2^406558042 is an apocalyptic number.

406558042 is a deficient number, since it is larger than the sum of its proper divisors (263509958).

406558042 is a wasteful number, since it uses less digits than its factorization.

406558042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133101.

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 406558042 is about 20163.2845042667. The cubic root of 406558042 is about 740.8111643133.

The spelling of 406558042 in words is "four hundred six million, five hundred fifty-eight thousand, forty-two".