325642240 has 288 divisors, whose sum is σ = 1008352800. Its totient is φ = 99778560.

The previous prime is 325642231. The next prime is 325642241. The reversal of 325642240 is 42246523.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 325642199 and 325642208.

It is not an unprimeable number, because it can be changed into a prime (325642241) 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, 5519331 + ... + 5519389.

It is an arithmetic number, because the mean of its divisors is an integer number (3501225).

Almost surely, 2^325642240 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 325642240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504176400).

325642240 is an abundant number, since it is smaller than the sum of its proper divisors (682710560).

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

325642240 is a wasteful number, since it uses less digits than its factorization.

325642240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 84 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 28.

The square root of 325642240 is about 18045.5601187661. The cubic root of 325642240 is about 687.9870197659.

Adding to 325642240 its reverse (42246523), we get a palindrome (367888763).

The spelling of 325642240 in words is "three hundred twenty-five million, six hundred forty-two thousand, two hundred forty".