23221346 has 8 divisors (see below), whose sum is σ = 35223660. Its totient is φ = 11480128.

The previous prime is 23221327. The next prime is 23221349. The reversal of 23221346 is 64312232.

It can be written as a sum of positive squares in 2 ways, for example, as 23145721 + 75625 = 4811^2 + 275^2 .

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

It is not an unprimeable number, because it can be changed into a prime (23221349) 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, 65051 + ... + 65406.

Almost surely, 2^23221346 is an apocalyptic number.

23221346 is a deficient number, since it is larger than the sum of its proper divisors (12002314).

23221346 is a wasteful number, since it uses less digits than its factorization.

23221346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 130548.

The product of its digits is 1728, while the sum is 23.

The square root of 23221346 is about 4818.8531830717. The cubic root of 23221346 is about 285.2960747902.

Adding to 23221346 its reverse (64312232), we get a palindrome (87533578).

The spelling of 23221346 in words is "twenty-three million, two hundred twenty-one thousand, three hundred forty-six".