406041943 has 4 divisors (see below), whose sum is σ = 406084320. Its totient is φ = 405999568.

The previous prime is 406041919. The next prime is 406041973. The reversal of 406041943 is 349140604.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 406041943 - 2¹⁷ = 405910871 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 (406041973) 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, 771 + ... + 28507.

It is an arithmetic number, because the mean of its divisors is an integer number (101521080).

Almost surely, 2^406041943 is an apocalyptic number.

406041943 is a deficient number, since it is larger than the sum of its proper divisors (42377).

406041943 is a wasteful number, since it uses less digits than its factorization.

406041943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42376.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 406041943 is about 20150.4824508000. The cubic root of 406041943 is about 740.4975610410.

The spelling of 406041943 in words is "four hundred six million, forty-one thousand, nine hundred forty-three".