338471261 has 4 divisors (see below), whose sum is σ = 342549312. Its totient is φ = 334393212.

The previous prime is 338471251. The next prime is 338471311. The reversal of 338471261 is 162174833.

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 a cyclic number.

It is not a de Polignac number, because 338471261 - 2²⁶ = 271362397 is a prime.

It is a super-2 number, since 2×338471261² = 229125589045860242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338471251) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2038901 + ... + 2039066.

It is an arithmetic number, because the mean of its divisors is an integer number (85637328).

Almost surely, 2^338471261 is an apocalyptic number.

It is an amenable number.

338471261 is a deficient number, since it is larger than the sum of its proper divisors (4078051).

338471261 is an equidigital number, since it uses as much as digits as its factorization.

338471261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078050.

The product of its digits is 24192, while the sum is 35.

The square root of 338471261 is about 18397.5884560993. The cubic root of 338471261 is about 696.9055660104.

The spelling of 338471261 in words is "three hundred thirty-eight million, four hundred seventy-one thousand, two hundred sixty-one".