4433021421 has 8 divisors (see below), whose sum is σ = 6101362944. Its totient is φ = 2860013760.

The previous prime is 4433021413. The next prime is 4433021431. The reversal of 4433021421 is 1241203344.

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

It is not a de Polignac number, because 4433021421 - 2³ = 4433021413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4433021391 and 4433021400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4433021431) 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, 23833356 + ... + 23833541.

It is an arithmetic number, because the mean of its divisors is an integer number (762670368).

Almost surely, 2^4433021421 is an apocalyptic number.

It is an amenable number.

4433021421 is a deficient number, since it is larger than the sum of its proper divisors (1668341523).

4433021421 is a wasteful number, since it uses less digits than its factorization.

4433021421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47666931.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4433021421 is about 66580.9388714218. The cubic root of 4433021421 is about 1642.7315944756.

Adding to 4433021421 its reverse (1241203344), we get a palindrome (5674224765).

The spelling of 4433021421 in words is "four billion, four hundred thirty-three million, twenty-one thousand, four hundred twenty-one".