339281939 has 4 divisors (see below), whose sum is σ = 344844000. Its totient is φ = 333719880.

The previous prime is 339281923. The next prime is 339281959. The reversal of 339281939 is 939182933.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 939182933 = 13 ⋅72244841.

It is a cyclic number.

It is not a de Polignac number, because 339281939 - 2⁴ = 339281923 is a prime.

It is a super-2 number, since 2×339281939² = 230224468263199442, 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 = 339281893 and 339281902.

It is not an unprimeable number, because it can be changed into a prime (339281909) 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, 2780939 + ... + 2781060.

It is an arithmetic number, because the mean of its divisors is an integer number (86211000).

Almost surely, 2^339281939 is an apocalyptic number.

339281939 is a deficient number, since it is larger than the sum of its proper divisors (5562061).

339281939 is an equidigital number, since it uses as much as digits as its factorization.

339281939 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5562060.

The product of its digits is 314928, while the sum is 47.

The square root of 339281939 is about 18419.6074605297. The cubic root of 339281939 is about 697.4615123310.

The spelling of 339281939 in words is "three hundred thirty-nine million, two hundred eighty-one thousand, nine hundred thirty-nine".