32118138 has 48 divisors (see below), whose sum is σ = 77542920. Its totient is φ = 9539712.

The previous prime is 32118127. The next prime is 32118157. The reversal of 32118138 is 83181123.

It can be written as a sum of positive squares in 4 ways, for example, as 17164449 + 14953689 = 4143^2 + 3867^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4420 + ... + 9152.

Almost surely, 2^32118138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32118138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38771460).

32118138 is an abundant number, since it is smaller than the sum of its proper divisors (45424782).

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

32118138 is a wasteful number, since it uses less digits than its factorization.

32118138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783 (or 4780 counting only the distinct ones).

The product of its digits is 1152, while the sum is 27.

The square root of 32118138 is about 5667.2866523584. The cubic root of 32118138 is about 317.8704230593.

The spelling of 32118138 in words is "thirty-two million, one hundred eighteen thousand, one hundred thirty-eight".