495404 has 24 divisors (see below), whose sum is σ = 1067808. Its totient is φ = 195840.

The previous prime is 495401. The next prime is 495413. The reversal of 495404 is 404594.

495404 = T₂₅₉ + T₂₆₀ + ... + T₂₇₂.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (495401) 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 in 7 ways as a sum of consecutive naturals, for example, 317 + ... + 1044.

It is an arithmetic number, because the mean of its divisors is an integer number (44492).

2⁴⁹⁵⁴⁰⁴ is an apocalyptic number.

It is an amenable number.

495404 is an abundant number, since it is smaller than the sum of its proper divisors (572404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

495404 is a wasteful number, since it uses less digits than its factorization.

495404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 495404 is about 703.8494157133. The cubic root of 495404 is about 79.1261137949.

Adding to 495404 its reverse (404594), we get a palindrome (899998).

The spelling of 495404 in words is "four hundred ninety-five thousand, four hundred four".