23220412 has 12 divisors (see below), whose sum is σ = 41125896. Its totient is φ = 11470160.

The previous prime is 23220403. The next prime is 23220437. The reversal of 23220412 is 21402232.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34639 + ... + 35302.

It is an arithmetic number, because the mean of its divisors is an integer number (3427158).

Almost surely, 2^23220412 is an apocalyptic number.

It is an amenable number.

23220412 is a deficient number, since it is larger than the sum of its proper divisors (17905484).

23220412 is a wasteful number, since it uses less digits than its factorization.

23220412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70028 (or 70026 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 23220412 is about 4818.7562710724. The cubic root of 23220412 is about 285.2922497161.

Adding to 23220412 its reverse (21402232), we get a palindrome (44622644).

It can be divided in two parts, 23220 and 412, that added together give a palindrome (23632).

The spelling of 23220412 in words is "twenty-three million, two hundred twenty thousand, four hundred twelve".