3420213421 has 8 divisors (see below), whose sum is σ = 3559073760. Its totient is φ = 3284049552.

The previous prime is 3420213373. The next prime is 3420213431. The reversal of 3420213421 is 1243120243.

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

It is a cyclic number.

It is not a de Polignac number, because 3420213421 - 2⁹ = 3420212909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3420213392 and 3420213401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420213431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671530 + ... + 676603.

It is an arithmetic number, because the mean of its divisors is an integer number (444884220).

Almost surely, 2^3420213421 is an apocalyptic number.

It is an amenable number.

3420213421 is a deficient number, since it is larger than the sum of its proper divisors (138860339).

3420213421 is a wasteful number, since it uses less digits than its factorization.

3420213421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348235.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 3420213421 is about 58482.5907514364. The cubic root of 3420213421 is about 1506.6685938957.

Adding to 3420213421 its reverse (1243120243), we get a palindrome (4663333664).

The spelling of 3420213421 in words is "three billion, four hundred twenty million, two hundred thirteen thousand, four hundred twenty-one".