322478 has 16 divisors (see below), whose sum is σ = 530880. Its totient is φ = 146016.

The previous prime is 322463. The next prime is 322501. The reversal of 322478 is 874223.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 322478.

It is an unprimeable number.

322478 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1976 + ... + 2132.

It is an arithmetic number, because the mean of its divisors is an integer number (33180).

2³²²⁴⁷⁸ is an apocalyptic number.

322478 is a deficient number, since it is larger than the sum of its proper divisors (208402).

322478 is a wasteful number, since it uses less digits than its factorization.

322478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251.

The product of its digits is 2688, while the sum is 26.

The square root of 322478 is about 567.8714643297. The cubic root of 322478 is about 68.5751391015.

322478 divided by its sum of digits (26) gives a triangular number (12403 = T₁₅₇).

The spelling of 322478 in words is "three hundred twenty-two thousand, four hundred seventy-eight".