428326970 has 8 divisors (see below), whose sum is σ = 770988564. Its totient is φ = 171330784.

The previous prime is 428326967. The next prime is 428326979. The reversal of 428326970 is 79623824.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 402122809 + 26204161 = 20053^2 + 5119^2 .

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

It is not an unprimeable number, because it can be changed into a prime (428326979) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 21416339 + ... + 21416358.

Almost surely, 2^428326970 is an apocalyptic number.

428326970 is a deficient number, since it is larger than the sum of its proper divisors (342661594).

428326970 is a wasteful number, since it uses less digits than its factorization.

428326970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42832704.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 428326970 is about 20696.0617026525. The cubic root of 428326970 is about 753.8040624866.

The spelling of 428326970 in words is "four hundred twenty-eight million, three hundred twenty-six thousand, nine hundred seventy".