2038330691 has 4 divisors (see below), whose sum is σ = 2050536432. Its totient is φ = 2026124952.

The previous prime is 2038330687. The next prime is 2038330699. The reversal of 2038330691 is 1960338302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2038330691 - 2² = 2038330687 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2038330699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6102620 + ... + 6102953.

It is an arithmetic number, because the mean of its divisors is an integer number (512634108).

Almost surely, 2^2038330691 is an apocalyptic number.

2038330691 is a deficient number, since it is larger than the sum of its proper divisors (12205741).

2038330691 is a wasteful number, since it uses less digits than its factorization.

2038330691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12205740.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 2038330691 is about 45147.8758193561. The cubic root of 2038330691 is about 1267.9191109870.

Adding to 2038330691 its reverse (1960338302), we get a palindrome (3998668993).

The spelling of 2038330691 in words is "two billion, thirty-eight million, three hundred thirty thousand, six hundred ninety-one".