338978051 has 2 divisors, whose sum is σ = 338978052. Its totient is φ = 338978050.

The previous prime is 338978039. The next prime is 338978077. The reversal of 338978051 is 150879833.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-338978051 is a prime.

It is a super-2 number, since 2×338978051² = 229812238119517202, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338977993 and 338978011.

It is not a weakly prime, because it can be changed into another prime (338978251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 169489025 + 169489026.

It is an arithmetic number, because the mean of its divisors is an integer number (169489026).

Almost surely, 2^338978051 is an apocalyptic number.

338978051 is a deficient number, since it is larger than the sum of its proper divisors (1).

338978051 is an equidigital number, since it uses as much as digits as its factorization.

338978051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 338978051 is about 18411.3565768522. The cubic root of 338978051 is about 697.2532160528.

The spelling of 338978051 in words is "three hundred thirty-eight million, nine hundred seventy-eight thousand, fifty-one".