3420416421 has 12 divisors (see below), whose sum is σ = 4947296640. Its totient is φ = 2277187560.

The previous prime is 3420416413. The next prime is 3420416443. The reversal of 3420416421 is 1246140243.

It is a happy number.

3420416421 is a `hidden beast` number, since 34 + 204 + 1 + 6 + 421 = 666.

It is not a de Polignac number, because 3420416421 - 2³ = 3420416413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3420416491) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 250485 + ... + 263786.

It is an arithmetic number, because the mean of its divisors is an integer number (412274720).

Almost surely, 2^3420416421 is an apocalyptic number.

It is an amenable number.

3420416421 is a deficient number, since it is larger than the sum of its proper divisors (1526880219).

3420416421 is a wasteful number, since it uses less digits than its factorization.

3420416421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 515016 (or 515013 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 3420416421 is about 58484.3262849116. The cubic root of 3420416421 is about 1506.6984017504.

Adding to 3420416421 its reverse (1246140243), we get a palindrome (4666556664).

It can be divided in two parts, 34204 and 16421, that added together give a 4-th power (50625 = 15⁴).

The spelling of 3420416421 in words is "three billion, four hundred twenty million, four hundred sixteen thousand, four hundred twenty-one".