3220461 has 6 divisors (see below), whose sum is σ = 4651790. Its totient is φ = 2146968.

The previous prime is 3220453. The next prime is 3220471. The reversal of 3220461 is 1640223.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3218436 + 2025 = 1794^2 + 45^2 .

It is not a de Polignac number, because 3220461 - 2³ = 3220453 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3220411) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178906 + ... + 178923.

Almost surely, 2^3220461 is an apocalyptic number.

It is an amenable number.

3220461 is a deficient number, since it is larger than the sum of its proper divisors (1431329).

3220461 is a wasteful number, since it uses less digits than its factorization.

3220461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357835 (or 357832 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 3220461 is about 1794.5642925234. The cubic root of 3220461 is about 147.6746719352.

Adding to 3220461 its reverse (1640223), we get a palindrome (4860684).

The spelling of 3220461 in words is "three million, two hundred twenty thousand, four hundred sixty-one".