3440331042021 has 40 divisors (see below), whose sum is σ = 5148633720384. Its totient is φ = 2289372733440.

The previous prime is 3440331042011. The next prime is 3440331042047. The reversal of 3440331042021 is 1202401330443.

3440331042021 is a `hidden beast` number, since 3 + 440 + 3 + 3 + 10 + 4 + 202 + 1 = 666.

It is not a de Polignac number, because 3440331042021 - 2⁹ = 3440331041509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3440331042011) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 258412261 + ... + 258425573.

Almost surely, 2^{3440331042021} is an apocalyptic number.

It is an amenable number.

3440331042021 is a deficient number, since it is larger than the sum of its proper divisors (1708302678363).

3440331042021 is a wasteful number, since it uses less digits than its factorization.

3440331042021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18903 (or 18894 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 3440331042021 its reverse (1202401330443), we get a palindrome (4642732372464).

The spelling of 3440331042021 in words is "three trillion, four hundred forty billion, three hundred thirty-one million, forty-two thousand, twenty-one".