338455378 has 4 divisors (see below), whose sum is σ = 507683070. Its totient is φ = 169227688.

The previous prime is 338455357. The next prime is 338455387. The reversal of 338455378 is 873554833.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 208426969 + 130028409 = 14437^2 + 11403^2 .

It is a super-2 number, since 2×338455378² = 229104085794245768, which contains 22 as substring.

It is an unprimeable number.

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, 84613843 + ... + 84613846.

Almost surely, 2^338455378 is an apocalyptic number.

338455378 is a deficient number, since it is larger than the sum of its proper divisors (169227692).

338455378 is a wasteful number, since it uses less digits than its factorization.

338455378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169227691.

The product of its digits is 1209600, while the sum is 46.

The square root of 338455378 is about 18397.1567912001. The cubic root of 338455378 is about 696.8946649132.

It can be divided in two parts, 338455 and 378, that added together give a palindrome (338833).

The spelling of 338455378 in words is "three hundred thirty-eight million, four hundred fifty-five thousand, three hundred seventy-eight".