323408381 has 8 divisors (see below), whose sum is σ = 326692800. Its totient is φ = 320137920.

The previous prime is 323408339. The next prime is 323408401. The reversal of 323408381 is 183804323.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323408381 is a prime.

It is a super-2 number, since 2×323408381² = 209185961802082322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323408321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46661 + ... + 53141.

It is an arithmetic number, because the mean of its divisors is an integer number (40836600).

Almost surely, 2^323408381 is an apocalyptic number.

It is an amenable number.

323408381 is a deficient number, since it is larger than the sum of its proper divisors (3284419).

323408381 is a wasteful number, since it uses less digits than its factorization.

323408381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6979.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 323408381 is about 17983.5586300376. The cubic root of 323408381 is about 686.4102447167.

The spelling of 323408381 in words is "three hundred twenty-three million, four hundred eight thousand, three hundred eighty-one".