238813403 has 2 divisors, whose sum is σ = 238813404. Its totient is φ = 238813402.

The previous prime is 238813363. The next prime is 238813411. The reversal of 238813403 is 304318832.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 238813403 - 2⁶ = 238813339 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 238813403.

It is not a weakly prime, because it can be changed into another prime (238813453) 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, 119406701 + 119406702.

It is an arithmetic number, because the mean of its divisors is an integer number (119406702).

Almost surely, 2^238813403 is an apocalyptic number.

238813403 is a deficient number, since it is larger than the sum of its proper divisors (1).

238813403 is an equidigital number, since it uses as much as digits as its factorization.

238813403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 238813403 is about 15453.5886770679. The cubic root of 238813403 is about 620.4206328755.

The spelling of 238813403 in words is "two hundred thirty-eight million, eight hundred thirteen thousand, four hundred three".