338338390407 has 4 divisors (see below), whose sum is σ = 451117853880. Its totient is φ = 225558926936.

The previous prime is 338338390391. The next prime is 338338390409. The reversal of 338338390407 is 704093833833.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 338338390407 - 2⁴ = 338338390391 is a prime.

It is a super-2 number, since 2×338338390407² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 338338390407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338338390409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56389731732 + ... + 56389731737.

It is an arithmetic number, because the mean of its divisors is an integer number (112779463470).

Almost surely, 2^338338390407 is an apocalyptic number.

338338390407 is a deficient number, since it is larger than the sum of its proper divisors (112779463473).

338338390407 is a wasteful number, since it uses less digits than its factorization.

338338390407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112779463472.

The product of its (nonzero) digits is 3919104, while the sum is 51.

The spelling of 338338390407 in words is "three hundred thirty-eight billion, three hundred thirty-eight million, three hundred ninety thousand, four hundred seven".