405635342 has 16 divisors (see below), whose sum is σ = 695855232. Its totient is φ = 173723640.

The previous prime is 405635339. The next prime is 405635357. The reversal of 405635342 is 243536504.

It is a junction number, because it is equal to n+sod(n) for n = 405635299 and 405635308.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12773 + ... + 31215.

It is an arithmetic number, because the mean of its divisors is an integer number (43490952).

Almost surely, 2^405635342 is an apocalyptic number.

405635342 is a deficient number, since it is larger than the sum of its proper divisors (290219890).

405635342 is a wasteful number, since it uses less digits than its factorization.

405635342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20023.

The product of its (nonzero) digits is 43200, while the sum is 32.

The square root of 405635342 is about 20140.3908105081. The cubic root of 405635342 is about 740.2503061202.

The spelling of 405635342 in words is "four hundred five million, six hundred thirty-five thousand, three hundred forty-two".