455664443 has 32 divisors (see below), whose sum is σ = 529858560. Its totient is φ = 388644480.

The previous prime is 455664437. The next prime is 455664463. The reversal of 455664443 is 344466554.

It is a cyclic number.

It is not a de Polignac number, because 455664443 - 2⁴ = 455664427 is a prime.

It is a super-2 number, since 2×455664443² = 415260169229000498, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 455664443.

It is not an unprimeable number, because it can be changed into a prime (455664463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1484096 + ... + 1484402.

It is an arithmetic number, because the mean of its divisors is an integer number (16558080).

Almost surely, 2^455664443 is an apocalyptic number.

455664443 is a deficient number, since it is larger than the sum of its proper divisors (74194117).

455664443 is a wasteful number, since it uses less digits than its factorization.

455664443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 507.

The product of its digits is 691200, while the sum is 41.

The square root of 455664443 is about 21346.2981099768. The cubic root of 455664443 is about 769.5113799996.

The spelling of 455664443 in words is "four hundred fifty-five million, six hundred sixty-four thousand, four hundred forty-three".