405934342 has 16 divisors (see below), whose sum is σ = 664679232. Its totient is φ = 184398120.

The previous prime is 405934283. The next prime is 405934343. The reversal of 405934342 is 243439504.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 405934298 and 405934307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405934343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36133 + ... + 46015.

It is an arithmetic number, because the mean of its divisors is an integer number (41542452).

Almost surely, 2^405934342 is an apocalyptic number.

405934342 is a deficient number, since it is larger than the sum of its proper divisors (258744890).

405934342 is a wasteful number, since it uses less digits than its factorization.

405934342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11763.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 405934342 is about 20147.8123378197. The cubic root of 405934342 is about 740.4321447141.

The spelling of 405934342 in words is "four hundred five million, nine hundred thirty-four thousand, three hundred forty-two".