405495 has 12 divisors (see below), whose sum is σ = 702936. Its totient is φ = 216240.

The previous prime is 405491. The next prime is 405497. The reversal of 405495 is 594504.

It is not a de Polignac number, because 405495 - 2² = 405491 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (405491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4461 + ... + 4550.

It is an arithmetic number, because the mean of its divisors is an integer number (58578).

2⁴⁰⁵⁴⁹⁵ is an apocalyptic number.

405495 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

405495 is a deficient number, since it is larger than the sum of its proper divisors (297441).

405495 is a wasteful number, since it uses less digits than its factorization.

405495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9022 (or 9019 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 405495 is about 636.7848930369. The cubic root of 405495 is about 74.0164925500.

Adding to 405495 its reverse (594504), we get a palindrome (999999).

It can be divided in two parts, 405 and 495, that added together give a square (900 = 30²).

The spelling of 405495 in words is "four hundred five thousand, four hundred ninety-five".