338554226978 has 54 divisors (see below), whose sum is σ = 564884856081. Its totient is φ = 152065636800.

The previous prime is 338554226971. The next prime is 338554227041. The reversal of 338554226978 is 879622455833.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 213820233649 + 124733993329 = 462407^2 + 353177^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=411433.

It is a super-2 number, since 2×338554226978² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 338554226978.

It is not an unprimeable number, because it can be changed into a prime (338554226971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1022822273 + ... + 1022822603.

Almost surely, 2^338554226978 is an apocalyptic number.

338554226978 is a deficient number, since it is larger than the sum of its proper divisors (226330629103).

338554226978 is an equidigital number, since it uses as much as digits as its factorization.

338554226978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 457 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 62.

The spelling of 338554226978 in words is "three hundred thirty-eight billion, five hundred fifty-four million, two hundred twenty-six thousand, nine hundred seventy-eight".