32506840 has 16 divisors (see below), whose sum is σ = 73140480. Its totient is φ = 13002720.

The previous prime is 32506829. The next prime is 32506847. The reversal of 32506840 is 4860523.

It is a junction number, because it is equal to n+sod(n) for n = 32506799 and 32506808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32506847) by changing a digit.

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, 406296 + ... + 406375.

It is an arithmetic number, because the mean of its divisors is an integer number (4571280).

Almost surely, 2^32506840 is an apocalyptic number.

It is an amenable number.

32506840 is an abundant number, since it is smaller than the sum of its proper divisors (40633640).

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

32506840 is a wasteful number, since it uses less digits than its factorization.

32506840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812682 (or 812678 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 32506840 is about 5701.4770016198. The cubic root of 32506840 is about 319.1476012338.

The spelling of 32506840 in words is "thirty-two million, five hundred six thousand, eight hundred forty".