3404442301021 has 4 divisors (see below), whose sum is σ = 3406358139772. Its totient is φ = 3402526462272.

The previous prime is 3404442301009. The next prime is 3404442301061. The reversal of 3404442301021 is 1201032444043.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2869598732121 + 534843568900 = 1693989^2 + 731330^2 .

It is a cyclic number.

It is not a de Polignac number, because 3404442301021 - 2⁵ = 3404442300989 is a prime.

It is a super-2 number, since 2×3404442301021² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3404442301061) 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, 957916710 + ... + 957920263.

It is an arithmetic number, because the mean of its divisors is an integer number (851589534943).

Almost surely, 2^{3404442301021} is an apocalyptic number.

It is an amenable number.

3404442301021 is a deficient number, since it is larger than the sum of its proper divisors (1915838751).

3404442301021 is a wasteful number, since it uses less digits than its factorization.

3404442301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1915838750.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 3404442301021 its reverse (1201032444043), we get a palindrome (4605474745064).

The spelling of 3404442301021 in words is "three trillion, four hundred four billion, four hundred forty-two million, three hundred one thousand, twenty-one".