396230381 has 2 divisors, whose sum is σ = 396230382. Its totient is φ = 396230380.

The previous prime is 396230347. The next prime is 396230411. The reversal of 396230381 is 183032693.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 299601481 + 96628900 = 17309^2 + 9830^2 .

It is a cyclic number.

It is not a de Polignac number, because 396230381 - 2²² = 392036077 is a prime.

It is a super-2 number, since 2×396230381² = 313997029654810322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (396230311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198115190 + 198115191.

It is an arithmetic number, because the mean of its divisors is an integer number (198115191).

Almost surely, 2^396230381 is an apocalyptic number.

It is an amenable number.

396230381 is a deficient number, since it is larger than the sum of its proper divisors (1).

396230381 is an equidigital number, since it uses as much as digits as its factorization.

396230381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 396230381 is about 19905.5364409001. The cubic root of 396230381 is about 734.4844247049.

It can be divided in two parts, 3962 and 30381, that added together give a palindrome (34343).

The spelling of 396230381 in words is "three hundred ninety-six million, two hundred thirty thousand, three hundred eighty-one".