396244237 has 2 divisors, whose sum is σ = 396244238. Its totient is φ = 396244236.

The previous prime is 396244181. The next prime is 396244267. The reversal of 396244237 is 732442693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 391604521 + 4639716 = 19789^2 + 2154^2 .

It is a cyclic number.

It is not a de Polignac number, because 396244237 - 2¹⁹ = 395719949 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 396244237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396244267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198122118 + 198122119.

It is an arithmetic number, because the mean of its divisors is an integer number (198122119).

Almost surely, 2^396244237 is an apocalyptic number.

It is an amenable number.

396244237 is a deficient number, since it is larger than the sum of its proper divisors (1).

396244237 is an equidigital number, since it uses as much as digits as its factorization.

396244237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 40.

The square root of 396244237 is about 19905.8844817305. The cubic root of 396244237 is about 734.4929861362.

The spelling of 396244237 in words is "three hundred ninety-six million, two hundred forty-four thousand, two hundred thirty-seven".