3442421 has 4 divisors (see below), whose sum is σ = 3515712. Its totient is φ = 3369132.

The previous prime is 3442409. The next prime is 3442423. The reversal of 3442421 is 1242443.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1242443 = 727 ⋅1709.

It is a cyclic number.

It is not a de Polignac number, because 3442421 - 2⁶ = 3442357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3442393 and 3442402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3442423) 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, 36575 + ... + 36668.

It is an arithmetic number, because the mean of its divisors is an integer number (878928).

Almost surely, 2^3442421 is an apocalyptic number.

It is an amenable number.

3442421 is a deficient number, since it is larger than the sum of its proper divisors (73291).

3442421 is an equidigital number, since it uses as much as digits as its factorization.

3442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73290.

The product of its digits is 768, while the sum is 20.

The square root of 3442421 is about 1855.3762421676. The cubic root of 3442421 is about 150.9922514042.

Adding to 3442421 its reverse (1242443), we get a palindrome (4684864).

The spelling of 3442421 in words is "three million, four hundred forty-two thousand, four hundred twenty-one".