32340021 has 16 divisors (see below), whose sum is σ = 50483328. Its totient is φ = 18028800.

The previous prime is 32339971. The next prime is 32340073. The reversal of 32340021 is 12004323.

It is not a de Polignac number, because 32340021 - 2¹⁰ = 32338997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32340221) 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, 17920 + ... + 19641.

It is an arithmetic number, because the mean of its divisors is an integer number (3155208).

Almost surely, 2^32340021 is an apocalyptic number.

It is an amenable number.

32340021 is a deficient number, since it is larger than the sum of its proper divisors (18143307).

32340021 is a wasteful number, since it uses less digits than its factorization.

32340021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37612.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 32340021 is about 5686.8287296172. The cubic root of 32340021 is about 318.6007294924.

Adding to 32340021 its reverse (12004323), we get a palindrome (44344344).

The spelling of 32340021 in words is "thirty-two million, three hundred forty thousand, twenty-one".