396019243 has 2 divisors, whose sum is σ = 396019244. Its totient is φ = 396019242.

The previous prime is 396019231. The next prime is 396019249. The reversal of 396019243 is 342910693.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 396019243 - 2⁹ = 396018731 is a prime.

It is not a weakly prime, because it can be changed into another prime (396019249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198009621 + 198009622.

It is an arithmetic number, because the mean of its divisors is an integer number (198009622).

Almost surely, 2^396019243 is an apocalyptic number.

396019243 is a deficient number, since it is larger than the sum of its proper divisors (1).

396019243 is an equidigital number, since it uses as much as digits as its factorization.

396019243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 37.

The square root of 396019243 is about 19900.2322348258. The cubic root of 396019243 is about 734.3539407463.

The spelling of 396019243 in words is "three hundred ninety-six million, nineteen thousand, two hundred forty-three".