3453021021 has 16 divisors (see below), whose sum is σ = 4689792000. Its totient is φ = 2259510528.

The previous prime is 3453021001. The next prime is 3453021049. The reversal of 3453021021 is 1201203543.

It is not a de Polignac number, because 3453021021 - 2⁹ = 3453020509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3453021001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10621 + ... + 83778.

It is an arithmetic number, because the mean of its divisors is an integer number (293112000).

Almost surely, 2^3453021021 is an apocalyptic number.

It is an amenable number.

3453021021 is a deficient number, since it is larger than the sum of its proper divisors (1236770979).

3453021021 is a wasteful number, since it uses less digits than its factorization.

3453021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94628.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 3453021021 is about 58762.4116336285. The cubic root of 3453021021 is about 1511.4707277819.

Adding to 3453021021 its reverse (1201203543), we get a palindrome (4654224564).

The spelling of 3453021021 in words is "three billion, four hundred fifty-three million, twenty-one thousand, twenty-one".