320125400 has 96 divisors (see below), whose sum is σ = 854945280. Its totient is φ = 109200000.

The previous prime is 320125391. The next prime is 320125409. The reversal of 320125400 is 4521023.

It is an interprime number because it is at equal distance from previous prime (320125391) and next prime (320125409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320125409) 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, 350945 + ... + 351855.

It is an arithmetic number, because the mean of its divisors is an integer number (8905680).

Almost surely, 2^320125400 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 320125400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (427472640).

320125400 is an abundant number, since it is smaller than the sum of its proper divisors (534819880).

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

320125400 is a wasteful number, since it uses less digits than its factorization.

320125400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185 (or 1176 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 320125400 is about 17892.0485132363. The cubic root of 320125400 is about 684.0797132456.

Adding to 320125400 its reverse (4521023), we get a palindrome (324646423).

The spelling of 320125400 in words is "three hundred twenty million, one hundred twenty-five thousand, four hundred".