3258028640 has 24 divisors (see below), whose sum is σ = 7697093040. Its totient is φ = 1303211392.

The previous prime is 3258028621. The next prime is 3258028643. The reversal of 3258028640 is 468208523.

It is a super-2 number, since 2×3258028640² = 21229501238120499200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3258028594 and 3258028603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3258028643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10181180 + ... + 10181499.

It is an arithmetic number, because the mean of its divisors is an integer number (320712210).

Almost surely, 2^3258028640 is an apocalyptic number.

It is an amenable number.

3258028640 is an abundant number, since it is smaller than the sum of its proper divisors (4439064400).

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

3258028640 is a wasteful number, since it uses less digits than its factorization.

3258028640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20362694 (or 20362686 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 38.

The square root of 3258028640 is about 57079.1436516001. The cubic root of 3258028640 is about 1482.4667652631.

The spelling of 3258028640 in words is "three billion, two hundred fifty-eight million, twenty-eight thousand, six hundred forty".