396432149 has 2 divisors, whose sum is σ = 396432150. Its totient is φ = 396432148.

The previous prime is 396432143. The next prime is 396432181. The reversal of 396432149 is 941234693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 354117124 + 42315025 = 18818^2 + 6505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-396432149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396432143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198216074 + 198216075.

It is an arithmetic number, because the mean of its divisors is an integer number (198216075).

Almost surely, 2^396432149 is an apocalyptic number.

It is an amenable number.

396432149 is a deficient number, since it is larger than the sum of its proper divisors (1).

396432149 is an equidigital number, since it uses as much as digits as its factorization.

396432149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 139968, while the sum is 41.

The square root of 396432149 is about 19910.6039335827. The cubic root of 396432149 is about 734.6090746670.

The spelling of 396432149 in words is "three hundred ninety-six million, four hundred thirty-two thousand, one hundred forty-nine".