4334442421 has 4 divisors (see below), whose sum is σ = 4365625600. Its totient is φ = 4303259244.

The previous prime is 4334442419. The next prime is 4334442473. The reversal of 4334442421 is 1242444334.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1242444334 = 2 ⋅621222167.

It is a cyclic number.

It is not a de Polignac number, because 4334442421 - 2¹ = 4334442419 is a prime.

It is a super-2 number, since 2×4334442421² = 37574782201928682482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4334442401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15591381 + ... + 15591658.

It is an arithmetic number, because the mean of its divisors is an integer number (1091406400).

Almost surely, 2^4334442421 is an apocalyptic number.

It is an amenable number.

4334442421 is a deficient number, since it is larger than the sum of its proper divisors (31183179).

4334442421 is a wasteful number, since it uses less digits than its factorization.

4334442421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31183178.

The product of its digits is 36864, while the sum is 31.

The square root of 4334442421 is about 65836.4824470445. The cubic root of 4334442421 is about 1630.4634938460.

Adding to 4334442421 its reverse (1242444334), we get a palindrome (5576886755).

The spelling of 4334442421 in words is "four billion, three hundred thirty-four million, four hundred forty-two thousand, four hundred twenty-one".