428790814 has 16 divisors (see below), whose sum is σ = 648869760. Its totient is φ = 212506200.

The previous prime is 428790811. The next prime is 428790827. The reversal of 428790814 is 418097824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428790811) 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, 294789 + ... + 296239.

It is an arithmetic number, because the mean of its divisors is an integer number (40554360).

Almost surely, 2^428790814 is an apocalyptic number.

428790814 is a deficient number, since it is larger than the sum of its proper divisors (220078946).

428790814 is a wasteful number, since it uses less digits than its factorization.

428790814 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2655.

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 428790814 is about 20707.2647638456. The cubic root of 428790814 is about 754.0760675812.

The spelling of 428790814 in words is "four hundred twenty-eight million, seven hundred ninety thousand, eight hundred fourteen".