338221055 has 32 divisors (see below), whose sum is σ = 429710400. Its totient is φ = 255209472.

The previous prime is 338221043. The next prime is 338221061. The reversal of 338221055 is 550122833.

It is a cyclic number.

It is not a de Polignac number, because 338221055 - 2²⁴ = 321443839 is a prime.

It is a super-2 number, since 2×338221055² = 228786964090626050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1954949 + ... + 1955121.

It is an arithmetic number, because the mean of its divisors is an integer number (13428450).

Almost surely, 2^338221055 is an apocalyptic number.

338221055 is a deficient number, since it is larger than the sum of its proper divisors (91489345).

338221055 is a wasteful number, since it uses less digits than its factorization.

338221055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443.

The product of its (nonzero) digits is 7200, while the sum is 29.

The square root of 338221055 is about 18390.7872316549. The cubic root of 338221055 is about 696.7338006269.

Adding to 338221055 its reverse (550122833), we get a palindrome (888343888).

The spelling of 338221055 in words is "three hundred thirty-eight million, two hundred twenty-one thousand, fifty-five".