338360405 has 4 divisors (see below), whose sum is σ = 406032492. Its totient is φ = 270688320.

The previous prime is 338360387. The next prime is 338360431. The reversal of 338360405 is 504063833.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 191490244 + 146870161 = 13838^2 + 12119^2 .

It is a de Polignac number, because none of the positive numbers 2^k-338360405 is a prime.

It is a super-2 number, since 2×338360405² = 228975527343528050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33836036 + ... + 33836045.

It is an arithmetic number, because the mean of its divisors is an integer number (101508123).

Almost surely, 2^338360405 is an apocalyptic number.

It is an amenable number.

338360405 is a deficient number, since it is larger than the sum of its proper divisors (67672087).

338360405 is an equidigital number, since it uses as much as digits as its factorization.

338360405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67672086.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 338360405 is about 18394.5754232056. The cubic root of 338360405 is about 696.8294742726.

The spelling of 338360405 in words is "three hundred thirty-eight million, three hundred sixty thousand, four hundred five".