428675770 has 8 divisors (see below), whose sum is σ = 771616404. Its totient is φ = 171470304.

The previous prime is 428675761. The next prime is 428675773. The reversal of 428675770 is 77576824.

It can be written as a sum of positive squares in 2 ways, for example, as 427621041 + 1054729 = 20679^2 + 1027^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 428675770.

It is not an unprimeable number, because it can be changed into a prime (428675773) 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, 21433779 + ... + 21433798.

Almost surely, 2^428675770 is an apocalyptic number.

428675770 is a deficient number, since it is larger than the sum of its proper divisors (342940634).

428675770 is a wasteful number, since it uses less digits than its factorization.

428675770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42867584.

The product of its (nonzero) digits is 658560, while the sum is 46.

The square root of 428675770 is about 20704.4867118217. The cubic root of 428675770 is about 754.0086223500.

The spelling of 428675770 in words is "four hundred twenty-eight million, six hundred seventy-five thousand, seven hundred seventy".