1339681406 has 8 divisors (see below), whose sum is σ = 2296596720. Its totient is φ = 574149168.

The previous prime is 1339681367. The next prime is 1339681417. The reversal of 1339681406 is 6041869331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon 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, 47845751 + ... + 47845778.

It is an arithmetic number, because the mean of its divisors is an integer number (287074590).

Almost surely, 2^1339681406 is an apocalyptic number.

1339681406 is a deficient number, since it is larger than the sum of its proper divisors (956915314).

1339681406 is an equidigital number, since it uses as much as digits as its factorization.

1339681406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95691538.

The product of its (nonzero) digits is 93312, while the sum is 41.

The square root of 1339681406 is about 36601.6585143351. The cubic root of 1339681406 is about 1102.3863910097.

The spelling of 1339681406 in words is "one billion, three hundred thirty-nine million, six hundred eighty-one thousand, four hundred six".