335040421 has 4 divisors (see below), whose sum is σ = 335079072. Its totient is φ = 335001772.

The previous prime is 335040413. The next prime is 335040443. The reversal of 335040421 is 124040533.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 124040533 = 349 ⋅355417.

It is a cyclic number.

It is not a de Polignac number, because 335040421 - 2³ = 335040413 is a prime.

It is a super-2 number, since 2×335040421² = 224504167407714482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 335040392 and 335040401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (335040481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 366 + ... + 25888.

It is an arithmetic number, because the mean of its divisors is an integer number (83769768).

Almost surely, 2^335040421 is an apocalyptic number.

It is an amenable number.

335040421 is a deficient number, since it is larger than the sum of its proper divisors (38651).

335040421 is a wasteful number, since it uses less digits than its factorization.

335040421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38650.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 335040421 is about 18304.1094019895. The cubic root of 335040421 is about 694.5428880023.

Adding to 335040421 its reverse (124040533), we get a palindrome (459080954).

The spelling of 335040421 in words is "three hundred thirty-five million, forty thousand, four hundred twenty-one".