338343478929 has 9 divisors (see below), whose sum is σ = 488720879049. Its totient is φ = 225561155940.

The previous prime is 338343478909. The next prime is 338343478981. The reversal of 338343478929 is 929874343833.

The square root of 338343478929 is 581673.

It is a perfect power (a square), and thus also a powerful number.

338343478929 is a `hidden beast` number, since 3 + 38 + 3 + 43 + 478 + 92 + 9 = 666.

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 338343478929 - 2⁷ = 338343478801 is a prime.

It is a super-2 number, since 2×338343478929² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338343478909) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1648074 + ... + 1841964.

Almost surely, 2^338343478929 is an apocalyptic number.

338343478929 is the 581673-rd square number.

338343478929 is the 290837-th centered octagonal number.

It is an amenable number.

338343478929 is a deficient number, since it is larger than the sum of its proper divisors (150377400120).

338343478929 is an frugal number, since it uses more digits than its factorization.

338343478929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387788 (or 193894 counting only the distinct ones).

The product of its digits is 94058496, while the sum is 63.

The spelling of 338343478929 in words is "three hundred thirty-eight billion, three hundred forty-three million, four hundred seventy-eight thousand, nine hundred twenty-nine".