326866406 has 8 divisors (see below), whose sum is σ = 497016264. Its totient is φ = 161194320.

The previous prime is 326866381. The next prime is 326866427. The reversal of 326866406 is 604668623.

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

It is a super-4 number, since 4×326866406⁴ (a number of 35 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1119260 + ... + 1119551.

It is an arithmetic number, because the mean of its divisors is an integer number (62127033).

Almost surely, 2^326866406 is an apocalyptic number.

326866406 is a deficient number, since it is larger than the sum of its proper divisors (170149858).

326866406 is a wasteful number, since it uses less digits than its factorization.

326866406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2238886.

The product of its (nonzero) digits is 248832, while the sum is 41.

The square root of 326866406 is about 18079.4470601288. The cubic root of 326866406 is about 688.8480435701.

The spelling of 326866406 in words is "three hundred twenty-six million, eight hundred sixty-six thousand, four hundred six".