4544021223 has 36 divisors (see below), whose sum is σ = 7898496840. Its totient is φ = 2507039136.

The previous prime is 4544021203. The next prime is 4544021227. The reversal of 4544021223 is 3221204454.

4544021223 is a `hidden beast` number, since 4 + 5 + 440 + 212 + 2 + 3 = 666.

It is not a de Polignac number, because 4544021223 - 2¹⁸ = 4543759079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4544021227) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 164865 + ... + 190442.

It is an arithmetic number, because the mean of its divisors is an integer number (219402690).

Almost surely, 2^4544021223 is an apocalyptic number.

4544021223 is a deficient number, since it is larger than the sum of its proper divisors (3354475617).

4544021223 is a wasteful number, since it uses less digits than its factorization.

4544021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355356 (or 355346 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 4544021223 is about 67409.3556043966. The cubic root of 4544021223 is about 1656.3296784205.

Adding to 4544021223 its reverse (3221204454), we get a palindrome (7765225677).

It can be divided in two parts, 454402 and 1223, that added together give a square (455625 = 675²).

The spelling of 4544021223 in words is "four billion, five hundred forty-four million, twenty-one thousand, two hundred twenty-three".