365538 has 8 divisors (see below), whose sum is σ = 731088. Its totient is φ = 121844.

The previous prime is 365537. The next prime is 365557. The reversal of 365538 is 835563.

It is a sphenic number, since it is the product of 3 distinct primes.

365538 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (365531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30456 + ... + 30467.

It is an arithmetic number, because the mean of its divisors is an integer number (91386).

2³⁶⁵⁵³⁸ is an apocalyptic number.

365538 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

365538 is a wasteful number, since it uses less digits than its factorization.

365538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60928.

The product of its digits is 10800, while the sum is 30.

The square root of 365538 is about 604.5973866963. The cubic root of 365538 is about 71.5007905760.

It can be divided in two parts, 365 and 538, that added together give a triangular number (903 = T₄₂).

The spelling of 365538 in words is "three hundred sixty-five thousand, five hundred thirty-eight".