1338699007 has 4 divisors (see below), whose sum is σ = 1339484040. Its totient is φ = 1337913976.

The previous prime is 1338699001. The next prime is 1338699023. The reversal of 1338699007 is 7009968331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7009968331 = 67 ⋅104626393.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1338699007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338699001) 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, 389953 + ... + 393370.

It is an arithmetic number, because the mean of its divisors is an integer number (334871010).

Almost surely, 2^1338699007 is an apocalyptic number.

1338699007 is a deficient number, since it is larger than the sum of its proper divisors (785033).

1338699007 is an equidigital number, since it uses as much as digits as its factorization.

1338699007 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785032.

The product of its (nonzero) digits is 244944, while the sum is 46.

The square root of 1338699007 is about 36588.2359099206. The cubic root of 1338699007 is about 1102.1168622219.

The spelling of 1338699007 in words is "one billion, three hundred thirty-eight million, six hundred ninety-nine thousand, seven".