3216940 has 24 divisors (see below), whose sum is σ = 6793920. Its totient is φ = 1279488.

The previous prime is 3216937. The next prime is 3216949. The reversal of 3216940 is 496123.

It is not an unprimeable number, because it can be changed into a prime (3216949) 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, 4444 + ... + 5116.

It is an arithmetic number, because the mean of its divisors is an integer number (283080).

Almost surely, 2^3216940 is an apocalyptic number.

It is an amenable number.

3216940 is an abundant number, since it is smaller than the sum of its proper divisors (3576980).

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

3216940 is a wasteful number, since it uses less digits than its factorization.

3216940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 921 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 3216940 is about 1793.5830061639. The cubic root of 3216940 is about 147.6208336668.

The spelling of 3216940 in words is "three million, two hundred sixteen thousand, nine hundred forty".