32278132 has 6 divisors (see below), whose sum is σ = 56486738. Its totient is φ = 16139064.

The previous prime is 32278109. The next prime is 32278139. The reversal of 32278132 is 23187223.

It can be written as a sum of positive squares in only one way, i.e., 27499536 + 4778596 = 5244^2 + 2186^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 32278132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32278139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4034763 + ... + 4034770.

Almost surely, 2^32278132 is an apocalyptic number.

It is an amenable number.

32278132 is a deficient number, since it is larger than the sum of its proper divisors (24208606).

32278132 is a wasteful number, since it uses less digits than its factorization.

32278132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8069537 (or 8069535 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 32278132 is about 5681.3846903726. The cubic root of 32278132 is about 318.3973646281.

Subtracting from 32278132 its reverse (23187223), we obtain a palindrome (9090909).

The spelling of 32278132 in words is "thirty-two million, two hundred seventy-eight thousand, one hundred thirty-two".