428816458 has 64 divisors (see below), whose sum is σ = 788449536. Its totient is φ = 171072000.

The previous prime is 428816447. The next prime is 428816477. The reversal of 428816458 is 854618824.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1295353 + ... + 1295683.

It is an arithmetic number, because the mean of its divisors is an integer number (12319524).

Almost surely, 2^428816458 is an apocalyptic number.

428816458 is a deficient number, since it is larger than the sum of its proper divisors (359633078).

428816458 is a wasteful number, since it uses less digits than its factorization.

428816458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479.

The product of its digits is 491520, while the sum is 46.

The square root of 428816458 is about 20707.8839575655. The cubic root of 428816458 is about 754.0910998849.

The spelling of 428816458 in words is "four hundred twenty-eight million, eight hundred sixteen thousand, four hundred fifty-eight".