732138 has 16 divisors (see below), whose sum is σ = 1597536. Its totient is φ = 221840.

The previous prime is 732133. The next prime is 732157. The reversal of 732138 is 831237.

It is a Curzon number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 732138.

It is not an unprimeable number, because it can be changed into a prime (732133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5481 + ... + 5612.

It is an arithmetic number, because the mean of its divisors is an integer number (99846).

2⁷³²¹³⁸ is an apocalyptic number.

732138 is an abundant number, since it is smaller than the sum of its proper divisors (865398).

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

732138 is a wasteful number, since it uses less digits than its factorization.

732138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11109.

The product of its digits is 1008, while the sum is 24.

The square root of 732138 is about 855.6506296381. The cubic root of 732138 is about 90.1289509548.

Subtracting 732138 from its reverse (831237), we obtain a palindrome (99099).

It can be divided in two parts, 73 and 2138, that added together give a triangular number (2211 = T₆₆).

The spelling of 732138 in words is "seven hundred thirty-two thousand, one hundred thirty-eight".