20232665 has 8 divisors (see below), whose sum is σ = 24323208. Its totient is φ = 16156800.

The previous prime is 20232659. The next prime is 20232683. The reversal of 20232665 is 56623202.

It can be written as a sum of positive squares in 4 ways, for example, as 11723776 + 8508889 = 3424^2 + 2917^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20232665 - 2⁸ = 20232409 is a prime.

It is a Duffinian 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, 362 + ... + 6371.

It is an arithmetic number, because the mean of its divisors is an integer number (3040401).

Almost surely, 2^20232665 is an apocalyptic number.

It is an amenable number.

20232665 is a deficient number, since it is larger than the sum of its proper divisors (4090543).

20232665 is an equidigital number, since it uses as much as digits as its factorization.

20232665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7339.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 20232665 is about 4498.0734765008. The cubic root of 20232665 is about 272.4902894724.

Adding to 20232665 its reverse (56623202), we get a palindrome (76855867).

The spelling of 20232665 in words is "twenty million, two hundred thirty-two thousand, six hundred sixty-five".