32240020 has 48 divisors (see below), whose sum is σ = 71406720. Its totient is φ = 12203136.

The previous prime is 32240009. The next prime is 32240027. The reversal of 32240020 is 2004223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32240027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49819 + ... + 50461.

It is an arithmetic number, because the mean of its divisors is an integer number (1487640).

Almost surely, 2^32240020 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 32240020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35703360).

32240020 is an abundant number, since it is smaller than the sum of its proper divisors (39166700).

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

32240020 is a wasteful number, since it uses less digits than its factorization.

32240020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 784 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 13.

The square root of 32240020 is about 5678.0295878060. The cubic root of 32240020 is about 318.2720007080.

Adding to 32240020 its reverse (2004223), we get a palindrome (34244243).

The spelling of 32240020 in words is "thirty-two million, two hundred forty thousand, twenty".