428448602 has 8 divisors (see below), whose sum is σ = 645935796. Its totient is φ = 213136672.

The previous prime is 428448599. The next prime is 428448611. The reversal of 428448602 is 206844824.

It is a Cunningham number, because it is equal to 20699²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 428448601 + 1 = 20699^2 + 1^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 543323 + ... + 544110.

Almost surely, 2^428448602 is an apocalyptic number.

428448602 is a deficient number, since it is larger than the sum of its proper divisors (217487194).

428448602 is a wasteful number, since it uses less digits than its factorization.

428448602 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087632.

The product of its (nonzero) digits is 98304, while the sum is 38.

The square root of 428448602 is about 20699.0000241558. Note that the first 4 decimals coincide. The cubic root of 428448602 is about 753.8754083079.

The spelling of 428448602 in words is "four hundred twenty-eight million, four hundred forty-eight thousand, six hundred two".