3235640 has 32 divisors (see below), whose sum is σ = 7598880. Its totient is φ = 1237632.

The previous prime is 3235633. The next prime is 3235649. The reversal of 3235640 is 465323.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3235649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 839 + ... + 2678.

It is an arithmetic number, because the mean of its divisors is an integer number (237465).

Almost surely, 2^3235640 is an apocalyptic number.

It is an amenable number.

3235640 is an abundant number, since it is smaller than the sum of its proper divisors (4363240).

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

3235640 is a wasteful number, since it uses less digits than its factorization.

3235640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3551 (or 3547 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 3235640 is about 1798.7884811728. The cubic root of 3235640 is about 147.9063200680.

The spelling of 3235640 in words is "three million, two hundred thirty-five thousand, six hundred forty".