32861220 has 48 divisors (see below), whose sum is σ = 105157248. Its totient is φ = 7511040.

The previous prime is 32861197. The next prime is 32861233. The reversal of 32861220 is 2216823.

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 15 ways as a sum of consecutive naturals, for example, 38701 + ... + 39540.

It is an arithmetic number, because the mean of its divisors is an integer number (2190776).

Almost surely, 2^32861220 is an apocalyptic number.

32861220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32861220 is an abundant number, since it is smaller than the sum of its proper divisors (72296028).

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

32861220 is a wasteful number, since it uses less digits than its factorization.

32861220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78260 (or 78258 counting only the distinct ones).

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

The square root of 32861220 is about 5732.4706715342. The cubic root of 32861220 is about 320.3031632178.

The spelling of 32861220 in words is "thirty-two million, eight hundred sixty-one thousand, two hundred twenty".