338478403 has 2 divisors, whose sum is σ = 338478404. Its totient is φ = 338478402.

The previous prime is 338478391. The next prime is 338478461. The reversal of 338478403 is 304874833.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 338478403 - 2⁹ = 338477891 is a prime.

It is a super-2 number, since 2×338478403² = 229135258594860818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (338878403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169239201 + 169239202.

It is an arithmetic number, because the mean of its divisors is an integer number (169239202).

Almost surely, 2^338478403 is an apocalyptic number.

338478403 is a deficient number, since it is larger than the sum of its proper divisors (1).

338478403 is an equidigital number, since it uses as much as digits as its factorization.

338478403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 338478403 is about 18397.7825566018. The cubic root of 338478403 is about 696.9104677210.

The spelling of 338478403 in words is "three hundred thirty-eight million, four hundred seventy-eight thousand, four hundred three".