405427459 has 2 divisors, whose sum is σ = 405427460. Its totient is φ = 405427458.

The previous prime is 405427381. The next prime is 405427471. The reversal of 405427459 is 954724504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 405427459 - 2⁹ = 405426947 is a prime.

It is a super-2 number, since 2×405427459² = 328742849022393362, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (405427259) 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, 202713729 + 202713730.

It is an arithmetic number, because the mean of its divisors is an integer number (202713730).

Almost surely, 2^405427459 is an apocalyptic number.

405427459 is a deficient number, since it is larger than the sum of its proper divisors (1).

405427459 is an equidigital number, since it uses as much as digits as its factorization.

405427459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 201600, while the sum is 40.

The square root of 405427459 is about 20135.2293009044. The cubic root of 405427459 is about 740.1238281945.

It can be divided in two parts, 4054 and 27459, that added together give a palindrome (31513).

The spelling of 405427459 in words is "four hundred five million, four hundred twenty-seven thousand, four hundred fifty-nine".