33404020400405 has 8 divisors (see below), whose sum is σ = 40764228285600. Its totient is φ = 26270280450256.

The previous prime is 33404020400371. The next prime is 33404020400503. The reversal of 33404020400405 is 50400402040433.

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 33404020400405 - 2²⁸ = 33403751964949 is a prime.

It is a super-2 number, since 2×33404020400405² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56616983435 + ... + 56616984024.

It is an arithmetic number, because the mean of its divisors is an integer number (5095528535700).

Almost surely, 2^{33404020400405} is an apocalyptic number.

It is an amenable number.

33404020400405 is a deficient number, since it is larger than the sum of its proper divisors (7360207885195).

33404020400405 is a wasteful number, since it uses less digits than its factorization.

33404020400405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113233967523.

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 33404020400405 its reverse (50400402040433), we get a palindrome (83804422440838).

The spelling of 33404020400405 in words is "thirty-three trillion, four hundred four billion, twenty million, four hundred thousand, four hundred five".