328406 has 16 divisors (see below), whose sum is σ = 562464. Its totient is φ = 142464.

The previous prime is 328397. The next prime is 328411. The reversal of 328406 is 604823.

328406 = T₁₈₈ + T₁₈₉ + ... + T₂₀₄.

It is a happy number.

328406 is nontrivially palindromic in base 14.

It is a nialpdrome in base 13.

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 328406.

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, 71 + ... + 813.

It is an arithmetic number, because the mean of its divisors is an integer number (35154).

2³²⁸⁴⁰⁶ is an apocalyptic number.

328406 is a deficient number, since it is larger than the sum of its proper divisors (234058).

328406 is a wasteful number, since it uses less digits than its factorization.

328406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 775.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 328406 is about 573.0671862880. The cubic root of 328406 is about 68.9927878760.

The spelling of 328406 in words is "three hundred twenty-eight thousand, four hundred six".