32256642 has 64 divisors (see below), whose sum is σ = 76723200. Its totient is φ = 8930880.

The previous prime is 32256619. The next prime is 32256677. The reversal of 32256642 is 24665223.

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 31 ways as a sum of consecutive naturals, for example, 35923 + ... + 36809.

It is an arithmetic number, because the mean of its divisors is an integer number (1198800).

Almost surely, 2^32256642 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32256642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38361600).

32256642 is an abundant number, since it is smaller than the sum of its proper divisors (44466558).

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

32256642 is a wasteful number, since it uses less digits than its factorization.

32256642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 951.

The product of its digits is 17280, while the sum is 30.

The square root of 32256642 is about 5679.4931111852. The cubic root of 32256642 is about 318.3266885181.

The spelling of 32256642 in words is "thirty-two million, two hundred fifty-six thousand, six hundred forty-two".