428231363 has 4 divisors (see below), whose sum is σ = 489407280. Its totient is φ = 367055448.

The previous prime is 428231341. The next prime is 428231369. The reversal of 428231363 is 363132824.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 428231363 - 2¹⁰ = 428230339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (428231369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30587948 + ... + 30587961.

It is an arithmetic number, because the mean of its divisors is an integer number (122351820).

Almost surely, 2^428231363 is an apocalyptic number.

428231363 is a deficient number, since it is larger than the sum of its proper divisors (61175917).

428231363 is an equidigital number, since it uses as much as digits as its factorization.

428231363 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61175916.

The product of its digits is 20736, while the sum is 32.

The square root of 428231363 is about 20693.7517864693. The cubic root of 428231363 is about 753.7479726978.

The spelling of 428231363 in words is "four hundred twenty-eight million, two hundred thirty-one thousand, three hundred sixty-three".