3453030621 has 16 divisors (see below), whose sum is σ = 5118240000. Its totient is φ = 2300832864.

The previous prime is 3453030617. The next prime is 3453030643. The reversal of 3453030621 is 1260303543.

It is a happy number.

3453030621 is a `hidden beast` number, since 3 + 4 + 5 + 3 + 0 + 30 + 621 = 666.

3453030621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3453030621 - 2² = 3453030617 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3453030601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21985 + ... + 85961.

It is an arithmetic number, because the mean of its divisors is an integer number (319890000).

Almost surely, 2^3453030621 is an apocalyptic number.

It is an amenable number.

3453030621 is a deficient number, since it is larger than the sum of its proper divisors (1665209379).

3453030621 is a wasteful number, since it uses less digits than its factorization.

3453030621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65985 (or 65979 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 27.

The square root of 3453030621 is about 58762.4933184425. The cubic root of 3453030621 is about 1511.4721284979.

The spelling of 3453030621 in words is "three billion, four hundred fifty-three million, thirty thousand, six hundred twenty-one".