32490656 has 48 divisors (see below), whose sum is σ = 70253568. Its totient is φ = 14668800.

The previous prime is 32490641. The next prime is 32490673. The reversal of 32490656 is 65609423.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 84641 + ... + 85023.

It is an arithmetic number, because the mean of its divisors is an integer number (1463616).

Almost surely, 2^32490656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32490656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35126784).

32490656 is an abundant number, since it is smaller than the sum of its proper divisors (37762912).

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

32490656 is a wasteful number, since it uses less digits than its factorization.

32490656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 35.

The square root of 32490656 is about 5700.0575435692. The cubic root of 32490656 is about 319.0946283601.

The spelling of 32490656 in words is "thirty-two million, four hundred ninety thousand, six hundred fifty-six".