32000020 has 24 divisors (see below), whose sum is σ = 72369864. Its totient is φ = 11815296.

The previous prime is 32000011. The next prime is 32000053. The reversal of 32000020 is 2000023.

It can be written as a sum of positive squares in 4 ways, for example, as 258064 + 31741956 = 508^2 + 5634^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31999967 and 32000012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61279 + ... + 61798.

It is an arithmetic number, because the mean of its divisors is an integer number (3015411).

Almost surely, 2^32000020 is an apocalyptic number.

It is an amenable number.

32000020 is an abundant number, since it is smaller than the sum of its proper divisors (40369844).

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

32000020 is a wasteful number, since it uses less digits than its factorization.

32000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123099 (or 123097 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 7.

The square root of 32000020 is about 5656.8560172591. The cubic root of 32000020 is about 317.4802765353.

Adding to 32000020 its reverse (2000023), we get a palindrome (34000043).

The spelling of 32000020 in words is "thirty-two million, twenty", and thus it is an aban number and an uban number.