405641333 has 2 divisors, whose sum is σ = 405641334. Its totient is φ = 405641332.

The previous prime is 405641329. The next prime is 405641339. The reversal of 405641333 is 333146504.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 366416164 + 39225169 = 19142^2 + 6263^2 .

It is a cyclic number.

It is not a de Polignac number, because 405641333 - 2² = 405641329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 405641296 and 405641305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (405641339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202820666 + 202820667.

It is an arithmetic number, because the mean of its divisors is an integer number (202820667).

Almost surely, 2^405641333 is an apocalyptic number.

It is an amenable number.

405641333 is a deficient number, since it is larger than the sum of its proper divisors (1).

405641333 is an equidigital number, since it uses as much as digits as its factorization.

405641333 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 405641333 is about 20140.5395409358. The cubic root of 405641333 is about 740.2539504590.

Adding to 405641333 its reverse (333146504), we get a palindrome (738787837).

The spelling of 405641333 in words is "four hundred five million, six hundred forty-one thousand, three hundred thirty-three".