446940313 has 2 divisors, whose sum is σ = 446940314. Its totient is φ = 446940312.

The previous prime is 446940311. The next prime is 446940349. The reversal of 446940313 is 313049644.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405941904 + 40998409 = 20148^2 + 6403^2 .

It is a cyclic number.

It is not a de Polignac number, because 446940313 - 2¹ = 446940311 is a prime.

It is a super-3 number, since 3×446940313³ (a number of 27 digits) contains 333 as substring.

Together with 446940311, it forms a pair of twin primes.

It is equal to p_23699410 and since 446940313 and 23699410 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (446940311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 223470156 + 223470157.

It is an arithmetic number, because the mean of its divisors is an integer number (223470157).

Almost surely, 2^446940313 is an apocalyptic number.

It is an amenable number.

446940313 is a deficient number, since it is larger than the sum of its proper divisors (1).

446940313 is an equidigital number, since it uses as much as digits as its factorization.

446940313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 34.

The square root of 446940313 is about 21140.9629156290. The cubic root of 446940313 is about 764.5686907581.

Adding to 446940313 its reverse (313049644), we get a palindrome (759989957).

The spelling of 446940313 in words is "four hundred forty-six million, nine hundred forty thousand, three hundred thirteen".