4413021421 has 8 divisors (see below), whose sum is σ = 4445928864. Its totient is φ = 4380232560.

The previous prime is 4413021391. The next prime is 4413021433. The reversal of 4413021421 is 1241203144.

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 4413021421 - 2³¹ = 2265537773 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4413021392 and 4413021401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4413021451) 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, 45771 + ... + 104503.

It is an arithmetic number, because the mean of its divisors is an integer number (555741108).

Almost surely, 2^4413021421 is an apocalyptic number.

It is an amenable number.

4413021421 is a deficient number, since it is larger than the sum of its proper divisors (32907443).

4413021421 is a wasteful number, since it uses less digits than its factorization.

4413021421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59291.

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

The square root of 4413021421 is about 66430.5759496333. The cubic root of 4413021421 is about 1640.2574230308.

Adding to 4413021421 its reverse (1241203144), we get a palindrome (5654224565).

The spelling of 4413021421 in words is "four billion, four hundred thirteen million, twenty-one thousand, four hundred twenty-one".