338687039 has 4 divisors (see below), whose sum is σ = 358609824. Its totient is φ = 318764256.

The previous prime is 338687021. The next prime is 338687053. The reversal of 338687039 is 930786833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 930786833 = 131 ⋅7105243.

It is a cyclic number.

It is not a de Polignac number, because 338687039 - 2²⁴ = 321909823 is a prime.

It is a super-2 number, since 2×338687039² = 229417820773175042, 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 = 338686984 and 338687002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338687339) 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, 9961367 + ... + 9961400.

It is an arithmetic number, because the mean of its divisors is an integer number (89652456).

Almost surely, 2^338687039 is an apocalyptic number.

338687039 is a deficient number, since it is larger than the sum of its proper divisors (19922785).

338687039 is a wasteful number, since it uses less digits than its factorization.

338687039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19922784.

The product of its (nonzero) digits is 653184, while the sum is 47.

The square root of 338687039 is about 18403.4518229597. The cubic root of 338687039 is about 697.0536287485.

The spelling of 338687039 in words is "three hundred thirty-eight million, six hundred eighty-seven thousand, thirty-nine".