428816159 has 4 divisors (see below), whose sum is σ = 431211960. Its totient is φ = 426420360.

The previous prime is 428816107. The next prime is 428816161. The reversal of 428816159 is 951618824.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-428816159 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 (428815159) 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, 1197632 + ... + 1197989.

It is an arithmetic number, because the mean of its divisors is an integer number (107802990).

Almost surely, 2^428816159 is an apocalyptic number.

428816159 is a deficient number, since it is larger than the sum of its proper divisors (2395801).

428816159 is a wasteful number, since it uses less digits than its factorization.

428816159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2395800.

The product of its digits is 138240, while the sum is 44.

The square root of 428816159 is about 20707.8767380917. The cubic root of 428816159 is about 754.0909246170.

The spelling of 428816159 in words is "four hundred twenty-eight million, eight hundred sixteen thousand, one hundred fifty-nine".