323525840 has 80 divisors (see below), whose sum is σ = 823447296. Its totient is φ = 117235200.

The previous prime is 323525819. The next prime is 323525857. The reversal of 323525840 is 48525323.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 323525797 and 323525806.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 378854 + ... + 379706.

Almost surely, 2^323525840 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 323525840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (411723648).

323525840 is an abundant number, since it is smaller than the sum of its proper divisors (499921456).

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

323525840 is a wasteful number, since it uses less digits than its factorization.

323525840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1308 (or 1302 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 323525840 is about 17986.8240665216. The cubic root of 323525840 is about 686.4933339900.

The spelling of 323525840 in words is "three hundred twenty-three million, five hundred twenty-five thousand, eight hundred forty".