3220491 has 8 divisors (see below), whose sum is σ = 4325440. Its totient is φ = 2131272.

The previous prime is 3220471. The next prime is 3220499. The reversal of 3220491 is 1940223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3220491 - 2¹⁹ = 2696203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3220499) 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, 3445 + ... + 4278.

It is an arithmetic number, because the mean of its divisors is an integer number (540680).

Almost surely, 2^3220491 is an apocalyptic number.

3220491 is a deficient number, since it is larger than the sum of its proper divisors (1104949).

3220491 is a wasteful number, since it uses less digits than its factorization.

3220491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7865.

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 3220491 is about 1794.5726510788. The cubic root of 3220491 is about 147.6751304851.

The spelling of 3220491 in words is "three million, two hundred twenty thousand, four hundred ninety-one".