38403 has 12 divisors (see below), whose sum is σ = 58968. Its totient is φ = 24000.

The previous prime is 38393. The next prime is 38431. The reversal of 38403 is 30483.

It is not a de Polignac number, because 38403 - 2⁵ = 38371 is a prime.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (38453) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28 + ... + 278.

It is an arithmetic number, because the mean of its divisors is an integer number (4914).

2³⁸⁴⁰³ is an apocalyptic number.

38403 is a deficient number, since it is larger than the sum of its proper divisors (20565).

38403 is a wasteful number, since it uses less digits than its factorization.

38403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 271 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 38403 is about 195.9668339286. The cubic root of 38403 is about 33.7381851649.

Adding to 38403 its reverse (30483), we get a palindrome (68886).

It can be divided in two parts, 38 and 403, that added together give a square (441 = 21²).

The spelling of 38403 in words is "thirty-eight thousand, four hundred three".