4021413421 has 8 divisors (see below), whose sum is σ = 4066814304. Its totient is φ = 3976157520.

The previous prime is 4021413419. The next prime is 4021413433. The reversal of 4021413421 is 1243141204.

It is a happy number.

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 4021413421 - 2¹ = 4021413419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4021413392 and 4021413401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021413491) 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, 20031 + ... + 91891.

It is an arithmetic number, because the mean of its divisors is an integer number (508351788).

Almost surely, 2^4021413421 is an apocalyptic number.

It is an amenable number.

4021413421 is a deficient number, since it is larger than the sum of its proper divisors (45400883).

4021413421 is a wasteful number, since it uses less digits than its factorization.

4021413421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72491.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 4021413421 is about 63414.6152002833. The cubic root of 4021413421 is about 1590.2286528226.

Adding to 4021413421 its reverse (1243141204), we get a palindrome (5264554625).

It can be divided in two parts, 40214 and 13421, that added together give a palindrome (53635).

The spelling of 4021413421 in words is "four billion, twenty-one million, four hundred thirteen thousand, four hundred twenty-one".