2038720387 has 32 divisors (see below), whose sum is σ = 2487571200. Its totient is φ = 1649289600.

The previous prime is 2038720357. The next prime is 2038720417. The reversal of 2038720387 is 7830278302.

It is an interprime number because it is at equal distance from previous prime (2038720357) and next prime (2038720417).

It is a cyclic number.

It is not a de Polignac number, because 2038720387 - 2¹⁹ = 2038196099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2038720337) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219712 + ... + 228802.

It is an arithmetic number, because the mean of its divisors is an integer number (77736600).

Almost surely, 2^2038720387 is an apocalyptic number.

2038720387 is a deficient number, since it is larger than the sum of its proper divisors (448850813).

2038720387 is a wasteful number, since it uses less digits than its factorization.

2038720387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9187.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 2038720387 is about 45152.1913864654. The cubic root of 2038720387 is about 1267.9999077428. Note that the first 4 decimals are identical.

Adding to 2038720387 its reverse (7830278302), we get a palindrome (9868998689).

The spelling of 2038720387 in words is "two billion, thirty-eight million, seven hundred twenty thousand, three hundred eighty-seven".