428398458 has 8 divisors (see below), whose sum is σ = 856796928. Its totient is φ = 142799484.

The previous prime is 428398447. The next prime is 428398459. The reversal of 428398458 is 854893824.

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

428398458 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 428398458.

It is not an unprimeable number, because it can be changed into a prime (428398459) 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, 35699866 + ... + 35699877.

It is an arithmetic number, because the mean of its divisors is an integer number (107099616).

Almost surely, 2^428398458 is an apocalyptic number.

428398458 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

428398458 is a wasteful number, since it uses less digits than its factorization.

428398458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71399748.

The product of its digits is 2211840, while the sum is 51.

The square root of 428398458 is about 20697.7887224698. The cubic root of 428398458 is about 753.8459969206.

The spelling of 428398458 in words is "four hundred twenty-eight million, three hundred ninety-eight thousand, four hundred fifty-eight".