545238 has 32 divisors (see below), whose sum is σ = 1267200. Its totient is φ = 173448.

The previous prime is 545231. The next prime is 545239. The reversal of 545238 is 832545.

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

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545231) by changing a digit.

545238 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 in 15 ways as a sum of consecutive naturals, for example, 1023 + ... + 1461.

It is an arithmetic number, because the mean of its divisors is an integer number (39600).

2⁵⁴⁵²³⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (633600).

545238 is an abundant number, since it is smaller than the sum of its proper divisors (721962).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545238 is a wasteful number, since it uses less digits than its factorization.

545238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473 (or 467 counting only the distinct ones).

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

The square root of 545238 is about 738.4023293571. The cubic root of 545238 is about 81.6949802331.

The spelling of 545238 in words is "five hundred forty-five thousand, two hundred thirty-eight".