334334021405 has 4 divisors (see below), whose sum is σ = 401200825692. Its totient is φ = 267467217120.

The previous prime is 334334021401. The next prime is 334334021447. The reversal of 334334021405 is 504120433433.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 504120433433 = 1861 ⋅270886853.

It can be written as a sum of positive squares in 2 ways, for example, as 245767071001 + 88566950404 = 495749^2 + 297602^2 .

It is not a de Polignac number, because 334334021405 - 2² = 334334021401 is a prime.

It is a super-2 number, since 2×334334021405² (a number of 24 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 (334334021401) 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, 33433402136 + ... + 33433402145.

It is an arithmetic number, because the mean of its divisors is an integer number (100300206423).

Almost surely, 2^334334021405 is an apocalyptic number.

It is an amenable number.

334334021405 is a deficient number, since it is larger than the sum of its proper divisors (66866804287).

334334021405 is an equidigital number, since it uses as much as digits as its factorization.

334334021405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66866804286.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 334334021405 its reverse (504120433433), we get a palindrome (838454454838).

The spelling of 334334021405 in words is "three hundred thirty-four billion, three hundred thirty-four million, twenty-one thousand, four hundred five".