428730458 has 8 divisors (see below), whose sum is σ = 692564628. Its totient is φ = 197875584.

The previous prime is 428730457. The next prime is 428730469. The reversal of 428730458 is 854037824.

It can be written as a sum of positive squares in 2 ways, for example, as 354305329 + 74425129 = 18823^2 + 8627^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (428730451) 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, 8244791 + ... + 8244842.

Almost surely, 2^428730458 is an apocalyptic number.

428730458 is a deficient number, since it is larger than the sum of its proper divisors (263834170).

428730458 is a wasteful number, since it uses less digits than its factorization.

428730458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16489648.

The product of its (nonzero) digits is 215040, while the sum is 41.

The square root of 428730458 is about 20705.8073496302. The cubic root of 428730458 is about 754.0406850207.

The spelling of 428730458 in words is "four hundred twenty-eight million, seven hundred thirty thousand, four hundred fifty-eight".