32540216 has 16 divisors (see below), whose sum is σ = 63666000. Its totient is φ = 15562624.

The previous prime is 32540203. The next prime is 32540237. The reversal of 32540216 is 61204523.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 32540191 and 32540200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88241 + ... + 88608.

It is an arithmetic number, because the mean of its divisors is an integer number (3979125).

Almost surely, 2^32540216 is an apocalyptic number.

It is an amenable number.

32540216 is a deficient number, since it is larger than the sum of its proper divisors (31125784).

32540216 is a wasteful number, since it uses less digits than its factorization.

32540216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176878 (or 176874 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 32540216 is about 5704.4032115551. The cubic root of 32540216 is about 319.2567908368.

Adding to 32540216 its reverse (61204523), we get a palindrome (93744739).

The spelling of 32540216 in words is "thirty-two million, five hundred forty thousand, two hundred sixteen".