325215400 has 144 divisors (see below), whose sum is σ = 844365600. Its totient is φ = 115948800.

The previous prime is 325215391. The next prime is 325215413. The reversal of 325215400 is 4512523.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5331370 + ... + 5331430.

It is an arithmetic number, because the mean of its divisors is an integer number (5863650).

Almost surely, 2^325215400 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 325215400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422182800).

325215400 is an abundant number, since it is smaller than the sum of its proper divisors (519150200).

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

325215400 is a wasteful number, since it uses less digits than its factorization.

325215400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180 (or 110 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 325215400 is about 18033.7295088953. The cubic root of 325215400 is about 687.6862922155.

Adding to 325215400 its reverse (4512523), we get a palindrome (329727923).

The spelling of 325215400 in words is "three hundred twenty-five million, two hundred fifteen thousand, four hundred".