323381421 has 12 divisors (see below), whose sum is σ = 509570880. Its totient is φ = 195988680.

The previous prime is 323381353. The next prime is 323381437. The reversal of 323381421 is 124183323.

323381421 is a `hidden beast` number, since 3 + 233 + 8 + 1 + 421 = 666.

It is not a de Polignac number, because 323381421 - 2⁹ = 323380909 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323381521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1633141 + ... + 1633338.

It is an arithmetic number, because the mean of its divisors is an integer number (42464240).

Almost surely, 2^323381421 is an apocalyptic number.

It is an amenable number.

323381421 is a deficient number, since it is larger than the sum of its proper divisors (186189459).

323381421 is a wasteful number, since it uses less digits than its factorization.

323381421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3266496 (or 3266493 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 323381421 is about 17982.8090408590. The cubic root of 323381421 is about 686.3911706548.

The spelling of 323381421 in words is "three hundred twenty-three million, three hundred eighty-one thousand, four hundred twenty-one".