32120020 has 24 divisors (see below), whose sum is σ = 68124168. Its totient is φ = 12720000.

The previous prime is 32120017. The next prime is 32120027. The reversal of 32120020 is 2002123.

It can be written as a sum of positive squares in 4 ways, for example, as 21790224 + 10329796 = 4668^2 + 3214^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 32119979 and 32120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32120027) 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, 5931 + ... + 9970.

It is an arithmetic number, because the mean of its divisors is an integer number (2838507).

Almost surely, 2^32120020 is an apocalyptic number.

It is an amenable number.

32120020 is an abundant number, since it is smaller than the sum of its proper divisors (36004148).

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

32120020 is a wasteful number, since it uses less digits than its factorization.

32120020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16011 (or 16009 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 32120020 is about 5667.4526905833. The cubic root of 32120020 is about 317.8766316015.

Adding to 32120020 its reverse (2002123), we get a palindrome (34122143).

The spelling of 32120020 in words is "thirty-two million, one hundred twenty thousand, twenty".