406042343 has 16 divisors (see below), whose sum is σ = 468426816. Its totient is φ = 344770560.

The previous prime is 406042327. The next prime is 406042361. The reversal of 406042343 is 343240604.

It is a cyclic number.

It is not a de Polignac number, because 406042343 - 2⁴ = 406042327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (406042313) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 392555 + ... + 393587.

It is an arithmetic number, because the mean of its divisors is an integer number (29276676).

Almost surely, 2^406042343 is an apocalyptic number.

406042343 is a deficient number, since it is larger than the sum of its proper divisors (62384473).

406042343 is a wasteful number, since it uses less digits than its factorization.

406042343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 406042343 is about 20150.4923761183. The cubic root of 406042343 is about 740.4978042005.

Adding to 406042343 its reverse (343240604), we get a palindrome (749282947).

The spelling of 406042343 in words is "four hundred six million, forty-two thousand, three hundred forty-three".