406454042 has 16 divisors (see below), whose sum is σ = 642364800. Its totient is φ = 192352320.

The previous prime is 406454039. The next prime is 406454063. The reversal of 406454042 is 240454604.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 406453996 and 406454014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42434 + ... + 51122.

It is an arithmetic number, because the mean of its divisors is an integer number (40147800).

Almost surely, 2^406454042 is an apocalyptic number.

406454042 is a deficient number, since it is larger than the sum of its proper divisors (235910758).

406454042 is a wasteful number, since it uses less digits than its factorization.

406454042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9941.

The product of its (nonzero) digits is 15360, while the sum is 29.

The square root of 406454042 is about 20160.7053944052. The cubic root of 406454042 is about 740.7479909379.

The spelling of 406454042 in words is "four hundred six million, four hundred fifty-four thousand, forty-two".