368278399 has 2 divisors, whose sum is σ = 368278400. Its totient is φ = 368278398.

The previous prime is 368278373. The next prime is 368278423. The reversal of 368278399 is 993872863.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 368278399 - 2⁵ = 368278367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (368278199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 184139199 + 184139200.

It is an arithmetic number, because the mean of its divisors is an integer number (184139200).

Almost surely, 2^368278399 is an apocalyptic number.

368278399 is a deficient number, since it is larger than the sum of its proper divisors (1).

368278399 is an equidigital number, since it uses as much as digits as its factorization.

368278399 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3919104, while the sum is 55.

The square root of 368278399 is about 19190.5809969370. The cubic root of 368278399 is about 716.7902382436.

The spelling of 368278399 in words is "three hundred sixty-eight million, two hundred seventy-eight thousand, three hundred ninety-nine".