428230228493 has 8 divisors (see below), whose sum is σ = 429212203200. Its totient is φ = 427248380160.

The previous prime is 428230228457. The next prime is 428230228507. The reversal of 428230228493 is 394822032824.

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 428230228493 - 2²⁸ = 427961793037 is a prime.

It is a super-2 number, since 2×428230228493² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428230278493) 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, 11595848 + ... + 11632718.

It is an arithmetic number, because the mean of its divisors is an integer number (53651525400).

Almost surely, 2^428230228493 is an apocalyptic number.

It is an amenable number.

428230228493 is a deficient number, since it is larger than the sum of its proper divisors (981974707).

428230228493 is a wasteful number, since it uses less digits than its factorization.

428230228493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63187.

The product of its (nonzero) digits is 1327104, while the sum is 47.

The spelling of 428230228493 in words is "four hundred twenty-eight billion, two hundred thirty million, two hundred twenty-eight thousand, four hundred ninety-three".