335332421 has 2 divisors, whose sum is σ = 335332422. Its totient is φ = 335332420.

The previous prime is 335332409. The next prime is 335332453. The reversal of 335332421 is 124233533.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330876100 + 4456321 = 18190^2 + 2111^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-335332421 is a prime.

It is a super-2 number, since 2×335332421² = 224895665147442482, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335332471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167666210 + 167666211.

It is an arithmetic number, because the mean of its divisors is an integer number (167666211).

Almost surely, 2^335332421 is an apocalyptic number.

It is an amenable number.

335332421 is a deficient number, since it is larger than the sum of its proper divisors (1).

335332421 is an equidigital number, since it uses as much as digits as its factorization.

335332421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 26.

The square root of 335332421 is about 18312.0840157531. The cubic root of 335332421 is about 694.7446026028.

Adding to 335332421 its reverse (124233533), we get a palindrome (459565954).

The spelling of 335332421 in words is "three hundred thirty-five million, three hundred thirty-two thousand, four hundred twenty-one".