33444043421 has 8 divisors (see below), whose sum is σ = 33479761920. Its totient is φ = 33408346608.

The previous prime is 33444043403. The next prime is 33444043439. The reversal of 33444043421 is 12434044433.

It is an interprime number because it is at equal distance from previous prime (33444043403) and next prime (33444043439).

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 33444043421 - 2⁶ = 33444043357 is a prime.

It is a super-2 number, since 2×33444043421² (a number of 22 digits) 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 (33444046421) 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, 6332660 + ... + 6337938.

It is an arithmetic number, because the mean of its divisors is an integer number (4184970240).

Almost surely, 2^33444043421 is an apocalyptic number.

It is an amenable number.

33444043421 is a deficient number, since it is larger than the sum of its proper divisors (35718499).

33444043421 is a wasteful number, since it uses less digits than its factorization.

33444043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10843.

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 33444043421 its reverse (12434044433), we get a palindrome (45878087854).

The spelling of 33444043421 in words is "thirty-three billion, four hundred forty-four million, forty-three thousand, four hundred twenty-one".