238545 has 40 divisors (see below), whose sum is σ = 464640. Its totient is φ = 116640.

The previous prime is 238531. The next prime is 238547. The reversal of 238545 is 545832.

238545 = 24³ + 25³ + ... + 33³.

It is not a de Polignac number, because 238545 - 2⁴ = 238529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an Ulam number.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238547) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 7680 + ... + 7710.

It is an arithmetic number, because the mean of its divisors is an integer number (11616).

2²³⁸⁵⁴⁵ is an apocalyptic number.

It is an amenable number.

238545 is a deficient number, since it is larger than the sum of its proper divisors (226095).

238545 is a wasteful number, since it uses less digits than its factorization.

238545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67 (or 58 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 238545 is about 488.4106878437. The cubic root of 238545 is about 62.0188114961.

The spelling of 238545 in words is "two hundred thirty-eight thousand, five hundred forty-five".