538536 has 32 divisors (see below), whose sum is σ = 1418400. Its totient is φ = 169920.

The previous prime is 538529. The next prime is 538553. The reversal of 538536 is 635835.

538536 = T₁₄₉ + T₁₅₀ + ... + T₁₈₆.

538536 is an esthetic number in base 15, because in such base its adjacent digits differ by 1.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a nialpdrome in base 15.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135 + ... + 1046.

It is an arithmetic number, because the mean of its divisors is an integer number (44325).

2⁵³⁸⁵³⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (709200).

538536 is an abundant number, since it is smaller than the sum of its proper divisors (879864).

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

538536 is a wasteful number, since it uses less digits than its factorization.

538536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1209 (or 1205 counting only the distinct ones).

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

The square root of 538536 is about 733.8501209375. The cubic root of 538536 is about 81.3588710155.

The spelling of 538536 in words is "five hundred thirty-eight thousand, five hundred thirty-six".