405375029 has 2 divisors, whose sum is σ = 405375030. Its totient is φ = 405375028.

The previous prime is 405375007. The next prime is 405375049. The reversal of 405375029 is 920573504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 260822500 + 144552529 = 16150^2 + 12023^2 .

It is a cyclic number.

It is not a de Polignac number, because 405375029 - 2²⁴ = 388597813 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 405375029.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405375049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202687514 + 202687515.

It is an arithmetic number, because the mean of its divisors is an integer number (202687515).

Almost surely, 2^405375029 is an apocalyptic number.

It is an amenable number.

405375029 is a deficient number, since it is larger than the sum of its proper divisors (1).

405375029 is an equidigital number, since it uses as much as digits as its factorization.

405375029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 405375029 is about 20133.9273118783. The cubic root of 405375029 is about 740.0919224743.

The spelling of 405375029 in words is "four hundred five million, three hundred seventy-five thousand, twenty-nine".