384445453 has 4 divisors (see below), whose sum is σ = 439366240. Its totient is φ = 329524668.

The previous prime is 384445423. The next prime is 384445469. The reversal of 384445453 is 354544483.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 384445453 - 2⁵ = 384445421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (384445423) 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, 27460383 + ... + 27460396.

It is an arithmetic number, because the mean of its divisors is an integer number (109841560).

Almost surely, 2^384445453 is an apocalyptic number.

It is an amenable number.

384445453 is a deficient number, since it is larger than the sum of its proper divisors (54920787).

384445453 is an equidigital number, since it uses as much as digits as its factorization.

384445453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54920786.

The product of its digits is 460800, while the sum is 40.

The square root of 384445453 is about 19607.2806120584. The cubic root of 384445453 is about 727.1291847119.

The spelling of 384445453 in words is "three hundred eighty-four million, four hundred forty-five thousand, four hundred fifty-three".