404002213 has 2 divisors, whose sum is σ = 404002214. Its totient is φ = 404002212.

The previous prime is 404002189. The next prime is 404002237. The reversal of 404002213 is 312200404.

It is a balanced prime because it is at equal distance from previous prime (404002189) and next prime (404002237).

It can be written as a sum of positive squares in only one way, i.e., 297148644 + 106853569 = 17238^2 + 10337^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-404002213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404002253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202001106 + 202001107.

It is an arithmetic number, because the mean of its divisors is an integer number (202001107).

Almost surely, 2^404002213 is an apocalyptic number.

It is an amenable number.

404002213 is a deficient number, since it is larger than the sum of its proper divisors (1).

404002213 is an equidigital number, since it uses as much as digits as its factorization.

404002213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 404002213 is about 20099.8062925989. The cubic root of 404002213 is about 739.2555289787.

Adding to 404002213 its reverse (312200404), we get a palindrome (716202617).

The spelling of 404002213 in words is "four hundred four million, two thousand, two hundred thirteen".