338390479 has 4 divisors (see below), whose sum is σ = 386731984. Its totient is φ = 290048976.

The previous prime is 338390471. The next prime is 338390483. The reversal of 338390479 is 974093833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 974093833 = 1409 ⋅691337.

It is not a de Polignac number, because 338390479 - 2³ = 338390471 is a prime.

It is a super-2 number, since 2×338390479² = 229016232555698882, 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 (338390471) 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, 24170742 + ... + 24170755.

It is an arithmetic number, because the mean of its divisors is an integer number (96682996).

Almost surely, 2^338390479 is an apocalyptic number.

338390479 is a deficient number, since it is larger than the sum of its proper divisors (48341505).

338390479 is an equidigital number, since it uses as much as digits as its factorization.

338390479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48341504.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 338390479 is about 18395.3928743042. The cubic root of 338390479 is about 696.8501187575.

The spelling of 338390479 in words is "three hundred thirty-eight million, three hundred ninety thousand, four hundred seventy-nine".