325558440 has 160 divisors (see below), whose sum is σ = 1107513000. Its totient is φ = 85764096.

The previous prime is 325558439. The next prime is 325558463. The reversal of 325558440 is 44855523.

325558440 is a `hidden beast` number, since 32 + 5 + 5 + 584 + 40 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 133957476 + 191600964 = 11574^2 + 13842^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 325558395 and 325558404.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 287796 + ... + 288924.

Almost surely, 2^325558440 is an apocalyptic number.

325558440 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 325558440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (553756500).

325558440 is an abundant number, since it is smaller than the sum of its proper divisors (781954560).

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

325558440 is a wasteful number, since it uses less digits than its factorization.

325558440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1228 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 325558440 is about 18043.2380685951. The cubic root of 325558440 is about 687.9279997215.

The spelling of 325558440 in words is "three hundred twenty-five million, five hundred fifty-eight thousand, four hundred forty".