3040221 has 8 divisors (see below), whose sum is σ = 4068064. Its totient is φ = 2019600.

The previous prime is 3040217. The next prime is 3040223. The reversal of 3040221 is 1220403.

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

It is not a de Polignac number, because 3040221 - 2² = 3040217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3040197 and 3040206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3040223) 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, 730 + ... + 2571.

It is an arithmetic number, because the mean of its divisors is an integer number (508508).

Almost surely, 2^3040221 is an apocalyptic number.

It is an amenable number.

3040221 is a deficient number, since it is larger than the sum of its proper divisors (1027843).

3040221 is a wasteful number, since it uses less digits than its factorization.

3040221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3611.

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 3040221 is about 1743.6229523610. The cubic root of 3040221 is about 144.8666391732.

Adding to 3040221 its reverse (1220403), we get a palindrome (4260624).

The spelling of 3040221 in words is "three million, forty thousand, two hundred twenty-one".