428281698 has 32 divisors (see below), whose sum is σ = 971006400. Its totient is φ = 124842816.

The previous prime is 428281669. The next prime is 428281723. The reversal of 428281698 is 896182824.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 143013 + ... + 145976.

It is an arithmetic number, because the mean of its divisors is an integer number (30343950).

Almost surely, 2^428281698 is an apocalyptic number.

428281698 is an abundant number, since it is smaller than the sum of its proper divisors (542724702).

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

428281698 is a wasteful number, since it uses less digits than its factorization.

428281698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289026.

The product of its digits is 442368, while the sum is 48.

The square root of 428281698 is about 20694.9679390909. The cubic root of 428281698 is about 753.7775037886. Note that the first 3 decimals are identical.

The spelling of 428281698 in words is "four hundred twenty-eight million, two hundred eighty-one thousand, six hundred ninety-eight".