338278463 has 4 divisors (see below), whose sum is σ = 346145448. Its totient is φ = 330411480.

The previous prime is 338278459. The next prime is 338278477. The reversal of 338278463 is 364872833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364872833 = 13 ⋅28067141.

It is a cyclic number.

It is not a de Polignac number, because 338278463 - 2² = 338278459 is a prime.

It is a super-2 number, since 2×338278463² = 228864637059284738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338278433) 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, 3933428 + ... + 3933513.

It is an arithmetic number, because the mean of its divisors is an integer number (86536362).

Almost surely, 2^338278463 is an apocalyptic number.

338278463 is a deficient number, since it is larger than the sum of its proper divisors (7866985).

338278463 is an equidigital number, since it uses as much as digits as its factorization.

338278463 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7866984.

The product of its digits is 580608, while the sum is 44.

The square root of 338278463 is about 18392.3479469044. The cubic root of 338278463 is about 696.7732184678.

The spelling of 338278463 in words is "three hundred thirty-eight million, two hundred seventy-eight thousand, four hundred sixty-three".