2038235509 has 4 divisors (see below), whose sum is σ = 2038484704. Its totient is φ = 2037986316.

The previous prime is 2038235491. The next prime is 2038235533. The reversal of 2038235509 is 9055328302.

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 2038235509 - 2¹⁵ = 2038202741 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 (2038232509) 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, 111897 + ... + 128830.

It is an arithmetic number, because the mean of its divisors is an integer number (509621176).

Almost surely, 2^2038235509 is an apocalyptic number.

It is an amenable number.

2038235509 is a deficient number, since it is larger than the sum of its proper divisors (249195).

2038235509 is an equidigital number, since it uses as much as digits as its factorization.

2038235509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249194.

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 2038235509 is about 45146.8216932266. The cubic root of 2038235509 is about 1267.8993750734.

The spelling of 2038235509 in words is "two billion, thirty-eight million, two hundred thirty-five thousand, five hundred nine".