32028009 has 32 divisors (see below), whose sum is σ = 47706624. Its totient is φ = 18988800.

The previous prime is 32028001. The next prime is 32028013. The reversal of 32028009 is 90082023.

It is not a de Polignac number, because 32028009 - 2³ = 32028001 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 32028009.

It is not an unprimeable number, because it can be changed into a prime (32028001) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 185047 + ... + 185219.

It is an arithmetic number, because the mean of its divisors is an integer number (1490832).

Almost surely, 2^32028009 is an apocalyptic number.

32028009 is a gapful number since it is divisible by the number (39) formed by its first and last digit.

It is an amenable number.

32028009 is a deficient number, since it is larger than the sum of its proper divisors (15678615).

32028009 is a wasteful number, since it uses less digits than its factorization.

32028009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 337.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 32028009 is about 5659.3293772319. The cubic root of 32028009 is about 317.5728115400.

It can be divided in two parts, 3202 and 8009, that added together give a palindrome (11211).

The spelling of 32028009 in words is "thirty-two million, twenty-eight thousand, nine".