492778 has 16 divisors (see below), whose sum is σ = 868896. Its totient is φ = 206640.

The previous prime is 492769. The next prime is 492781. The reversal of 492778 is 877294.

It is a happy number.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 576 + ... + 1147.

It is an arithmetic number, because the mean of its divisors is an integer number (54306).

2⁴⁹²⁷⁷⁸ is an apocalyptic number.

492778 is a deficient number, since it is larger than the sum of its proper divisors (376118).

492778 is a wasteful number, since it uses less digits than its factorization.

492778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749.

The product of its digits is 28224, while the sum is 37.

The square root of 492778 is about 701.9814812372. The cubic root of 492778 is about 78.9860574658.

It can be divided in two parts, 4927 and 78, that added together give a palindrome (5005).

The spelling of 492778 in words is "four hundred ninety-two thousand, seven hundred seventy-eight".