406043 has 4 divisors (see below), whose sum is σ = 442968. Its totient is φ = 369120.

The previous prime is 406037. The next prime is 406067. The reversal of 406043 is 340604.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 406043 - 2⁴ = 406027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18446 + ... + 18467.

It is an arithmetic number, because the mean of its divisors is an integer number (110742).

2⁴⁰⁶⁰⁴³ is an apocalyptic number.

406043 is a deficient number, since it is larger than the sum of its proper divisors (36925).

406043 is a wasteful number, since it uses less digits than its factorization.

406043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36924.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 406043 is about 637.2150343487. The cubic root of 406043 is about 74.0498203590.

Adding to 406043 its reverse (340604), we get a palindrome (746647).

The spelling of 406043 in words is "four hundred six thousand, forty-three".