338390471 has 2 divisors, whose sum is σ = 338390472. Its totient is φ = 338390470.

The previous prime is 338390453. The next prime is 338390483. The reversal of 338390471 is 174093833.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 338390471 - 2⁶ = 338390407 is a prime.

It is a super-3 number, since 3×338390471³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (338390431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169195235 + 169195236.

It is an arithmetic number, because the mean of its divisors is an integer number (169195236).

Almost surely, 2^338390471 is an apocalyptic number.

338390471 is a deficient number, since it is larger than the sum of its proper divisors (1).

338390471 is an equidigital number, since it uses as much as digits as its factorization.

338390471 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 38.

The square root of 338390471 is about 18395.3926568584. The cubic root of 338390471 is about 696.8501132660.

The spelling of 338390471 in words is "three hundred thirty-eight million, three hundred ninety thousand, four hundred seventy-one".