428345103 has 8 divisors (see below), whose sum is σ = 573578928. Its totient is φ = 284337344.

The previous prime is 428345089. The next prime is 428345119. The reversal of 428345103 is 301543824.

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 428345103 - 2⁴ = 428345087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428345303) 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, 305700 + ... + 307097.

It is an arithmetic number, because the mean of its divisors is an integer number (71697366).

Almost surely, 2^428345103 is an apocalyptic number.

428345103 is a deficient number, since it is larger than the sum of its proper divisors (145233825).

428345103 is a wasteful number, since it uses less digits than its factorization.

428345103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613033.

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 428345103 is about 20696.4997765323. The cubic root of 428345103 is about 753.8146996378.

Adding to 428345103 its reverse (301543824), we get a palindrome (729888927).

The spelling of 428345103 in words is "four hundred twenty-eight million, three hundred forty-five thousand, one hundred three".