33424140421 has 8 divisors (see below), whose sum is σ = 38659247424. Its totient is φ = 28304090880.

The previous prime is 33424140403. The next prime is 33424140433. The reversal of 33424140421 is 12404142433.

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 33424140421 - 2¹³ = 33424132229 is a prime.

It is a super-2 number, since 2×33424140421² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33424140421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33424140721) 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, 28763740 + ... + 28764901.

It is an arithmetic number, because the mean of its divisors is an integer number (4832405928).

Almost surely, 2^33424140421 is an apocalyptic number.

It is an amenable number.

33424140421 is a deficient number, since it is larger than the sum of its proper divisors (5235107003).

33424140421 is an equidigital number, since it uses as much as digits as its factorization.

33424140421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57528731.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 33424140421 its reverse (12404142433), we get a palindrome (45828282854).

The spelling of 33424140421 in words is "thirty-three billion, four hundred twenty-four million, one hundred forty thousand, four hundred twenty-one".