3420340421 has 8 divisors (see below), whose sum is σ = 3513607680. Its totient is φ = 3327116688.

The previous prime is 3420340409. The next prime is 3420340459. The reversal of 3420340421 is 1240430243.

3420340421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3420340421 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 (3420346421) 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, 206900 + ... + 222818.

It is an arithmetic number, because the mean of its divisors is an integer number (439200960).

Almost surely, 2^3420340421 is an apocalyptic number.

It is an amenable number.

3420340421 is a deficient number, since it is larger than the sum of its proper divisors (93267259).

3420340421 is a wasteful number, since it uses less digits than its factorization.

3420340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21763.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 3420340421 is about 58483.6765345682. The cubic root of 3420340421 is about 1506.6872422976.

Adding to 3420340421 its reverse (1240430243), we get a palindrome (4660770664).

The spelling of 3420340421 in words is "three billion, four hundred twenty million, three hundred forty thousand, four hundred twenty-one".