405419453 has 2 divisors, whose sum is σ = 405419454. Its totient is φ = 405419452.

The previous prime is 405419429. The next prime is 405419491. The reversal of 405419453 is 354914504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 246709849 + 158709604 = 15707^2 + 12598^2 .

It is a cyclic number.

It is not a de Polignac number, because 405419453 - 2²⁶ = 338310589 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405419423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202709726 + 202709727.

It is an arithmetic number, because the mean of its divisors is an integer number (202709727).

Almost surely, 2^405419453 is an apocalyptic number.

It is an amenable number.

405419453 is a deficient number, since it is larger than the sum of its proper divisors (1).

405419453 is an equidigital number, since it uses as much as digits as its factorization.

405419453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43200, while the sum is 35.

The square root of 405419453 is about 20135.0304941413. The cubic root of 405419453 is about 740.1189564061.

It can be divided in two parts, 40541 and 9453, that added together give a palindrome (49994).

The spelling of 405419453 in words is "four hundred five million, four hundred nineteen thousand, four hundred fifty-three".