338555641 has 4 divisors (see below), whose sum is σ = 346429072. Its totient is φ = 330682212.

The previous prime is 338555627. The next prime is 338555671. The reversal of 338555641 is 146555833.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 338555641 - 2²⁵ = 305001209 is a prime.

It is a super-2 number, since 2×338555641² = 229239844105841762, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 338555594 and 338555603.

It is not an unprimeable number, because it can be changed into a prime (338555611) 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, 3936651 + ... + 3936736.

It is an arithmetic number, because the mean of its divisors is an integer number (86607268).

Almost surely, 2^338555641 is an apocalyptic number.

It is an amenable number.

338555641 is a deficient number, since it is larger than the sum of its proper divisors (7873431).

338555641 is an equidigital number, since it uses as much as digits as its factorization.

338555641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7873430.

The product of its digits is 216000, while the sum is 40.

The square root of 338555641 is about 18399.8815485318. The cubic root of 338555641 is about 696.9634734434.

The spelling of 338555641 in words is "three hundred thirty-eight million, five hundred fifty-five thousand, six hundred forty-one".