428968250 has 16 divisors (see below), whose sum is σ = 803029032. Its totient is φ = 171587200.

The previous prime is 428968249. The next prime is 428968271. The reversal of 428968250 is 52869824.

It can be written as a sum of positive squares in 4 ways, for example, as 96963409 + 332004841 = 9847^2 + 18221^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 857687 + ... + 858186.

Almost surely, 2^428968250 is an apocalyptic number.

428968250 is a deficient number, since it is larger than the sum of its proper divisors (374060782).

428968250 is a wasteful number, since it uses less digits than its factorization.

428968250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1715890 (or 1715880 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 44.

The square root of 428968250 is about 20711.5487108038. The cubic root of 428968250 is about 754.1800668471.

The spelling of 428968250 in words is "four hundred twenty-eight million, nine hundred sixty-eight thousand, two hundred fifty".