323843904 has 168 divisors, whose sum is σ = 989015040. Its totient is φ = 101025792.

The previous prime is 323843903. The next prime is 323843911. The reversal of 323843904 is 409348323.

It is a happy number.

It is a super-2 number, since 2×323843904² = 209749748315922432, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323843903) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1389772 + ... + 1390004.

Almost surely, 2^323843904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 323843904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (494507520).

323843904 is an abundant number, since it is smaller than the sum of its proper divisors (665171136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

323843904 is a wasteful number, since it uses less digits than its factorization.

323843904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 384 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The square root of 323843904 is about 17995.6634776270. The cubic root of 323843904 is about 686.7182282372.

The spelling of 323843904 in words is "three hundred twenty-three million, eight hundred forty-three thousand, nine hundred four".