1339706401 has 4 divisors (see below), whose sum is σ = 1461497904. Its totient is φ = 1217914900.

The previous prime is 1339706371. The next prime is 1339706413. The reversal of 1339706401 is 1046079331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1339706401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1339706441) 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, 60895735 + ... + 60895756.

It is an arithmetic number, because the mean of its divisors is an integer number (365374476).

Almost surely, 2^1339706401 is an apocalyptic number.

1339706401 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1339706401 is a deficient number, since it is larger than the sum of its proper divisors (121791503).

1339706401 is a wasteful number, since it uses less digits than its factorization.

1339706401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121791502.

The product of its (nonzero) digits is 13608, while the sum is 34.

The square root of 1339706401 is about 36601.9999590186. Note that the first 4 decimals coincide. The cubic root of 1339706401 is about 1102.3932468627.

The spelling of 1339706401 in words is "one billion, three hundred thirty-nine million, seven hundred six thousand, four hundred one".