23220349 has 8 divisors (see below), whose sum is σ = 23946840. Its totient is φ = 22499136.

The previous prime is 23220347. The next prime is 23220361. The reversal of 23220349 is 94302232.

It can be written as a sum of positive squares in 4 ways, for example, as 1737124 + 21483225 = 1318^2 + 4635^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 23220349 - 2¹ = 23220347 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23220347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8787 + ... + 11119.

It is an arithmetic number, because the mean of its divisors is an integer number (2993355).

Almost surely, 2^23220349 is an apocalyptic number.

It is an amenable number.

23220349 is a deficient number, since it is larger than the sum of its proper divisors (726491).

23220349 is a wasteful number, since it uses less digits than its factorization.

23220349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 23220349 is about 4818.7497341115. The cubic root of 23220349 is about 285.2919917042.

The spelling of 23220349 in words is "twenty-three million, two hundred twenty thousand, three hundred forty-nine".