325111644 has 144 divisors (see below), whose sum is σ = 1001669760. Its totient is φ = 90901440.

The previous prime is 325111613. The next prime is 325111681. The reversal of 325111644 is 446111523.

It is a happy number.

325111644 is a `hidden beast` number, since 3 + 2 + 5 + 1 + 11 + 644 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 137827 + ... + 140165.

It is an arithmetic number, because the mean of its divisors is an integer number (6956040).

Almost surely, 2^325111644 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 325111644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500834880).

325111644 is an abundant number, since it is smaller than the sum of its proper divisors (676558116).

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

325111644 is a wasteful number, since it uses less digits than its factorization.

325111644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382 (or 2368 counting only the distinct ones).

The product of its digits is 2880, while the sum is 27.

The square root of 325111644 is about 18030.8525588781. The cubic root of 325111644 is about 687.6131518002.

The spelling of 325111644 in words is "three hundred twenty-five million, one hundred eleven thousand, six hundred forty-four".