78038 has 4 divisors (see below), whose sum is σ = 117060. Its totient is φ = 39018.

The previous prime is 78031. The next prime is 78041. The reversal of 78038 is 83087.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83087 = 19 ⋅4373.

It is a junction number, because it is equal to n+sod(n) for n = 77998 and 78016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78031) by changing a digit.

78038 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19508 + ... + 19511.

It is an arithmetic number, because the mean of its divisors is an integer number (29265).

2⁷⁸⁰³⁸ is an apocalyptic number.

78038 is a deficient number, since it is larger than the sum of its proper divisors (39022).

78038 is a wasteful number, since it uses less digits than its factorization.

78038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39021.

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 78038 is about 279.3528235046. The cubic root of 78038 is about 42.7335241961.

It can be divided in two parts, 780 and 38, that added together give a palindrome (818).

The spelling of 78038 in words is "seventy-eight thousand, thirty-eight".