4144400321 has 4 divisors (see below), whose sum is σ = 4166098944. Its totient is φ = 4122701700.

The previous prime is 4144400297. The next prime is 4144400333. The reversal of 4144400321 is 1230044414.

It is a happy number.

4144400321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4144400321 - 2¹⁴ = 4144383937 is a prime.

It is a super-3 number, since 3×4144400321³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4144400341) 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, 10849025 + ... + 10849406.

It is an arithmetic number, because the mean of its divisors is an integer number (1041524736).

Almost surely, 2^4144400321 is an apocalyptic number.

It is an amenable number.

4144400321 is a deficient number, since it is larger than the sum of its proper divisors (21698623).

4144400321 is a wasteful number, since it uses less digits than its factorization.

4144400321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21698622.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4144400321 is about 64377.0170247115. The cubic root of 4144400321 is about 1606.2774638251.

Adding to 4144400321 its reverse (1230044414), we get a palindrome (5374444735).

The spelling of 4144400321 in words is "four billion, one hundred forty-four million, four hundred thousand, three hundred twenty-one".