33434340421 has 8 divisors (see below), whose sum is σ = 34124165120. Its totient is φ = 32751181008.

The previous prime is 33434340371. The next prime is 33434340493. The reversal of 33434340421 is 12404343433.

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 33434340421 - 2¹⁹ = 33433816133 is a prime.

It is a super-2 number, since 2×33434340421² (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 (33434310421) 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, 1656186 + ... + 1676251.

It is an arithmetic number, because the mean of its divisors is an integer number (4265520640).

Almost surely, 2^33434340421 is an apocalyptic number.

It is an amenable number.

33434340421 is a deficient number, since it is larger than the sum of its proper divisors (689824699).

33434340421 is a wasteful number, since it uses less digits than its factorization.

33434340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332643.

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 33434340421 its reverse (12404343433), we get a palindrome (45838683854).

The spelling of 33434340421 in words is "thirty-three billion, four hundred thirty-four million, three hundred forty thousand, four hundred twenty-one".