3258920 has 64 divisors (see below), whose sum is σ = 8536320. Its totient is φ = 1096704.

The previous prime is 3258919. The next prime is 3258929. The reversal of 3258920 is 298523.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3258929) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28784 + ... + 28896.

It is an arithmetic number, because the mean of its divisors is an integer number (133380).

Almost surely, 2^3258920 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 3258920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4268160).

3258920 is an abundant number, since it is smaller than the sum of its proper divisors (5277400).

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

3258920 is a wasteful number, since it uses less digits than its factorization.

3258920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 230 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 3258920 is about 1805.2479054135. The cubic root of 3258920 is about 148.2601948348.

The spelling of 3258920 in words is "three million, two hundred fifty-eight thousand, nine hundred twenty".