20233669 has 4 divisors (see below), whose sum is σ = 20886400. Its totient is φ = 19580940.

The previous prime is 20233663. The next prime is 20233687. The reversal of 20233669 is 96633202.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20233669 - 2¹³ = 20225477 is a prime.

It is a super-2 number, since 2×20233669² = 818802722403122, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 652699 = 20233669 / (2 + 0 + 2 + 3 + 3 + 6 + 6 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20233669.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 326319 + ... + 326380.

It is an arithmetic number, because the mean of its divisors is an integer number (5221600).

Almost surely, 2^20233669 is an apocalyptic number.

It is an amenable number.

20233669 is a deficient number, since it is larger than the sum of its proper divisors (652731).

20233669 is an equidigital number, since it uses as much as digits as its factorization.

20233669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 652730.

The product of its (nonzero) digits is 11664, while the sum is 31.

The square root of 20233669 is about 4498.1850784511. The cubic root of 20233669 is about 272.4947966349.

It can be divided in two parts, 20233 and 669, that added together give a palindrome (20902).

The spelling of 20233669 in words is "twenty million, two hundred thirty-three thousand, six hundred sixty-nine".