338060781 has 12 divisors (see below), whose sum is σ = 488570940. Its totient is φ = 225253440.

The previous prime is 338060777. The next prime is 338060803. The reversal of 338060781 is 187060833.

It can be written as a sum of positive squares in 2 ways, for example, as 322920900 + 15139881 = 17970^2 + 3891^2 .

It is not a de Polignac number, because 338060781 - 2² = 338060777 is a prime.

It is a super-2 number, since 2×338060781² = 228570183300659922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338060771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9811 + ... + 27791.

It is an arithmetic number, because the mean of its divisors is an integer number (40714245).

Almost surely, 2^338060781 is an apocalyptic number.

It is an amenable number.

338060781 is a deficient number, since it is larger than the sum of its proper divisors (150510159).

338060781 is a wasteful number, since it uses less digits than its factorization.

338060781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20076 (or 20073 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 338060781 is about 18386.4292618224. The cubic root of 338060781 is about 696.6237286734.

The spelling of 338060781 in words is "three hundred thirty-eight million, sixty thousand, seven hundred eighty-one".