326390 has 16 divisors (see below), whose sum is σ = 594432. Its totient is φ = 129024.

The previous prime is 326369. The next prime is 326437. The reversal of 326390 is 93623.

326390 = 6⁴ + 7⁴ + ... + 17⁴.

It is a happy number.

326390 is nontrivially palindromic in base 9.

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 in 7 ways as a sum of consecutive naturals, for example, 1142 + ... + 1398.

It is an arithmetic number, because the mean of its divisors is an integer number (37152).

2³²⁶³⁹⁰ is an apocalyptic number.

326390 is a deficient number, since it is larger than the sum of its proper divisors (268042).

326390 is a wasteful number, since it uses less digits than its factorization.

326390 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 326390 is about 571.3055224659. The cubic root of 326390 is about 68.8513216762.

It can be divided in two parts, 32 and 6390, that multiplied together give a triangular number (204480 = T₆₃₉).

The spelling of 326390 in words is "three hundred twenty-six thousand, three hundred ninety".