32220681 has 8 divisors (see below), whose sum is σ = 43065120. Its totient is φ = 21428352.

The previous prime is 32220679. The next prime is 32220691. The reversal of 32220681 is 18602223.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 32220681 - 2¹ = 32220679 is a prime.

It is a super-2 number, since 2×32220681² = 2076344568207522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32220691) by changing a digit.

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, 11560 + ... + 14073.

It is an arithmetic number, because the mean of its divisors is an integer number (5383140).

Almost surely, 2^32220681 is an apocalyptic number.

It is an amenable number.

32220681 is a deficient number, since it is larger than the sum of its proper divisors (10844439).

32220681 is a wasteful number, since it uses less digits than its factorization.

32220681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26055.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 32220681 is about 5676.3263648243. The cubic root of 32220681 is about 318.2083500720.

The spelling of 32220681 in words is "thirty-two million, two hundred twenty thousand, six hundred eighty-one".