405099842 has 8 divisors (see below), whose sum is σ = 694456896. Its totient is φ = 173614212.

The previous prime is 405099833. The next prime is 405099857. The reversal of 405099842 is 248990504.

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

It is a self number, because there is not a number n which added to its sum of digits gives 405099842.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14467838 + ... + 14467865.

It is an arithmetic number, because the mean of its divisors is an integer number (86807112).

Almost surely, 2^405099842 is an apocalyptic number.

405099842 is a deficient number, since it is larger than the sum of its proper divisors (289357054).

405099842 is a wasteful number, since it uses less digits than its factorization.

405099842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28935712.

The product of its (nonzero) digits is 103680, while the sum is 41.

The square root of 405099842 is about 20127.0922390692. The cubic root of 405099842 is about 739.9244152164.

The spelling of 405099842 in words is "four hundred five million, ninety-nine thousand, eight hundred forty-two".