1938329333 has 4 divisors (see below), whose sum is σ = 1950221088. Its totient is φ = 1926437580.

The previous prime is 1938329329. The next prime is 1938329353. The reversal of 1938329333 is 3339238391.

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 not a de Polignac number, because 1938329333 - 2² = 1938329329 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 (1938329353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5945633 + ... + 5945958.

It is an arithmetic number, because the mean of its divisors is an integer number (487555272).

Almost surely, 2^1938329333 is an apocalyptic number.

It is an amenable number.

1938329333 is a deficient number, since it is larger than the sum of its proper divisors (11891755).

1938329333 is a wasteful number, since it uses less digits than its factorization.

1938329333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11891754.

The product of its digits is 314928, while the sum is 44.

The square root of 1938329333 is about 44026.4617360968. The cubic root of 1938329333 is about 1246.8355869921.

The spelling of 1938329333 in words is "one billion, nine hundred thirty-eight million, three hundred twenty-nine thousand, three hundred thirty-three".