45238 has 4 divisors (see below), whose sum is σ = 67860. Its totient is φ = 22618.

The previous prime is 45233. The next prime is 45247. The reversal of 45238 is 83254.

45238 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 83254 = 2 ⋅41627.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (45233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11308 + ... + 11311.

It is an arithmetic number, because the mean of its divisors is an integer number (16965).

2⁴⁵²³⁸ is an apocalyptic number.

45238 is a deficient number, since it is larger than the sum of its proper divisors (22622).

45238 is a wasteful number, since it uses less digits than its factorization.

45238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22621.

The product of its digits is 960, while the sum is 22.

The square root of 45238 is about 212.6922659619. The cubic root of 45238 is about 35.6315295306.

The spelling of 45238 in words is "forty-five thousand, two hundred thirty-eight".