428446453 has 4 divisors (see below), whose sum is σ = 438410368. Its totient is φ = 418482540.

The previous prime is 428446399. The next prime is 428446477. The reversal of 428446453 is 354644824.

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 a de Polignac number, because none of the positive numbers 2^k-428446453 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 (428446483) 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, 4981893 + ... + 4981978.

It is an arithmetic number, because the mean of its divisors is an integer number (109602592).

Almost surely, 2^428446453 is an apocalyptic number.

428446453 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

It is an amenable number.

428446453 is a deficient number, since it is larger than the sum of its proper divisors (9963915).

428446453 is an equidigital number, since it uses as much as digits as its factorization.

428446453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9963914.

The product of its digits is 368640, while the sum is 40.

The square root of 428446453 is about 20698.9481133704. The cubic root of 428446453 is about 753.8741478837.

The spelling of 428446453 in words is "four hundred twenty-eight million, four hundred forty-six thousand, four hundred fifty-three".