495478 has 4 divisors (see below), whose sum is σ = 743220. Its totient is φ = 247738.

The previous prime is 495461. The next prime is 495491. The reversal of 495478 is 874594.

It is a semiprime because it is the product of two primes.

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123868 + ... + 123871.

It is an arithmetic number, because the mean of its divisors is an integer number (185805).

2⁴⁹⁵⁴⁷⁸ is an apocalyptic number.

495478 is a deficient number, since it is larger than the sum of its proper divisors (247742).

495478 is a wasteful number, since it uses less digits than its factorization.

495478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247741.

The product of its digits is 40320, while the sum is 37.

The square root of 495478 is about 703.9019818128. The cubic root of 495478 is about 79.1300533681.

The spelling of 495478 in words is "four hundred ninety-five thousand, four hundred seventy-eight".