3424021 has 4 divisors (see below), whose sum is σ = 3625452. Its totient is φ = 3222592.

The previous prime is 3424019. The next prime is 3424037. The reversal of 3424021 is 1204243.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2604996 + 819025 = 1614^2 + 905^2 .

It is a cyclic number.

It is not a de Polignac number, because 3424021 - 2¹ = 3424019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3423986 and 3424004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3424061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100690 + ... + 100723.

It is an arithmetic number, because the mean of its divisors is an integer number (906363).

Almost surely, 2^3424021 is an apocalyptic number.

It is an amenable number.

3424021 is a deficient number, since it is larger than the sum of its proper divisors (201431).

3424021 is a wasteful number, since it uses less digits than its factorization.

3424021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201430.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 3424021 is about 1850.4110354189. The cubic root of 3424021 is about 150.7227490030.

Adding to 3424021 its reverse (1204243), we get a palindrome (4628264).

The spelling of 3424021 in words is "three million, four hundred twenty-four thousand, twenty-one".