32423540 has 12 divisors (see below), whose sum is σ = 68089476. Its totient is φ = 12969408.

The previous prime is 32423453. The next prime is 32423549. The reversal of 32423540 is 4532423.

It can be written as a sum of positive squares in 2 ways, for example, as 23697424 + 8726116 = 4868^2 + 2954^2 .

It is a super-3 number, since 3×32423540³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32423549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 810569 + ... + 810608.

It is an arithmetic number, because the mean of its divisors is an integer number (5674123).

Almost surely, 2^32423540 is an apocalyptic number.

It is an amenable number.

32423540 is an abundant number, since it is smaller than the sum of its proper divisors (35665936).

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

32423540 is a wasteful number, since it uses less digits than its factorization.

32423540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1621186 (or 1621184 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 32423540 is about 5694.1671910825. The cubic root of 32423540 is about 318.8747588011.

Adding to 32423540 its reverse (4532423), we get a palindrome (36955963).

The spelling of 32423540 in words is "thirty-two million, four hundred twenty-three thousand, five hundred forty".