32442820 has 12 divisors (see below), whose sum is σ = 68129964. Its totient is φ = 12977120.

The previous prime is 32442797. The next prime is 32442827. The reversal of 32442820 is 2824423.

It can be written as a sum of positive squares in 2 ways, for example, as 7761796 + 24681024 = 2786^2 + 4968^2 .

It is not an unprimeable number, because it can be changed into a prime (32442827) 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 3 ways as a sum of consecutive naturals, for example, 811051 + ... + 811090.

It is an arithmetic number, because the mean of its divisors is an integer number (5677497).

Almost surely, 2^32442820 is an apocalyptic number.

It is an amenable number.

32442820 is an abundant number, since it is smaller than the sum of its proper divisors (35687144).

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

32442820 is a wasteful number, since it uses less digits than its factorization.

32442820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1622150 (or 1622148 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

The square root of 32442820 is about 5695.8598999624. The cubic root of 32442820 is about 318.9379504121.

The spelling of 32442820 in words is "thirty-two million, four hundred forty-two thousand, eight hundred twenty".