3455644321 has 8 divisors (see below), whose sum is σ = 3578515200. Its totient is φ = 3333020880.

The previous prime is 3455644279. The next prime is 3455644333. The reversal of 3455644321 is 1234465543.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3455644321 - 2¹⁵ = 3455611553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3455644721) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33201 + ... + 89518.

It is an arithmetic number, because the mean of its divisors is an integer number (447314400).

Almost surely, 2^3455644321 is an apocalyptic number.

It is an amenable number.

3455644321 is a deficient number, since it is larger than the sum of its proper divisors (122870879).

3455644321 is a wasteful number, since it uses less digits than its factorization.

3455644321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123719.

The product of its digits is 172800, while the sum is 37.

The square root of 3455644321 is about 58784.7286376317. The cubic root of 3455644321 is about 1511.8533914904.

The spelling of 3455644321 in words is "three billion, four hundred fifty-five million, six hundred forty-four thousand, three hundred twenty-one".