405475043 has 2 divisors, whose sum is σ = 405475044. Its totient is φ = 405475042.

The previous prime is 405475039. The next prime is 405475111. The reversal of 405475043 is 340574504.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 405475043 - 2² = 405475039 is a prime.

It is not a weakly prime, because it can be changed into another prime (405475243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202737521 + 202737522.

It is an arithmetic number, because the mean of its divisors is an integer number (202737522).

Almost surely, 2^405475043 is an apocalyptic number.

405475043 is a deficient number, since it is larger than the sum of its proper divisors (1).

405475043 is an equidigital number, since it uses as much as digits as its factorization.

405475043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33600, while the sum is 32.

The square root of 405475043 is about 20136.4108768171. The cubic root of 405475043 is about 740.1527825518.

It can be divided in two parts, 4054 and 75043, that added together give a palindrome (79097).

The spelling of 405475043 in words is "four hundred five million, four hundred seventy-five thousand, forty-three".