3235840 has 56 divisors (see below), whose sum is σ = 7863840. Its totient is φ = 1277952.

The previous prime is 3235829. The next prime is 3235889. The reversal of 3235840 is 485323.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40921 + ... + 40999.

Almost surely, 2^3235840 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 3235840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3931920).

3235840 is an abundant number, since it is smaller than the sum of its proper divisors (4628000).

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

3235840 is an frugal number, since it uses more digits than its factorization.

3235840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110 (or 86 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 3235840 is about 1798.8440732871. The cubic root of 3235840 is about 147.9093674460.

The spelling of 3235840 in words is "three million, two hundred thirty-five thousand, eight hundred forty".