424778 has 8 divisors (see below), whose sum is σ = 641568. Its totient is φ = 210924.

The previous prime is 424777. The next prime is 424811. The reversal of 424778 is 877424.

424778 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (424771) 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 3 ways as a sum of consecutive naturals, for example, 326 + ... + 977.

It is an arithmetic number, because the mean of its divisors is an integer number (80196).

2⁴²⁴⁷⁷⁸ is an apocalyptic number.

424778 is a deficient number, since it is larger than the sum of its proper divisors (216790).

424778 is a wasteful number, since it uses less digits than its factorization.

424778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1468.

The product of its digits is 12544, while the sum is 32.

The square root of 424778 is about 651.7499520522. The cubic root of 424778 is about 75.1716365420.

The spelling of 424778 in words is "four hundred twenty-four thousand, seven hundred seventy-eight".