3444243021 has 6 divisors (see below), whose sum is σ = 4975017710. Its totient is φ = 2296162008.

The previous prime is 3444242957. The next prime is 3444243037. The reversal of 3444243021 is 1203424443.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3434546025 + 9696996 = 58605^2 + 3114^2 .

It is not a de Polignac number, because 3444243021 - 2⁶ = 3444242957 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 (3444243091) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 191346826 + ... + 191346843.

Almost surely, 2^3444243021 is an apocalyptic number.

It is an amenable number.

3444243021 is a deficient number, since it is larger than the sum of its proper divisors (1530774689).

3444243021 is a wasteful number, since it uses less digits than its factorization.

3444243021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382693675 (or 382693672 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 3444243021 is about 58687.6735013410. The cubic root of 3444243021 is about 1510.1888600524.

Adding to 3444243021 its reverse (1203424443), we get a palindrome (4647667464).

The spelling of 3444243021 in words is "three billion, four hundred forty-four million, two hundred forty-three thousand, twenty-one".