426824 has 8 divisors (see below), whose sum is σ = 800310. Its totient is φ = 213408.

The previous prime is 426799. The next prime is 426841. The reversal of 426824 is 428624.

426824 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 280900 + 145924 = 530^2 + 382^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 426793 and 426802.

It is an unprimeable number.

426824 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26669 + ... + 26684.

2⁴²⁶⁸²⁴ is an apocalyptic number.

It is an amenable number.

426824 is a deficient number, since it is larger than the sum of its proper divisors (373486).

426824 is a wasteful number, since it uses less digits than its factorization.

426824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53359 (or 53355 counting only the distinct ones).

The product of its digits is 3072, while the sum is 26.

The square root of 426824 is about 653.3176868875. The cubic root of 426824 is about 75.2921346943.

The spelling of 426824 in words is "four hundred twenty-six thousand, eight hundred twenty-four".