428604970 has 8 divisors (see below), whose sum is σ = 771488964. Its totient is φ = 171441984.

The previous prime is 428604947. The next prime is 428604989. The reversal of 428604970 is 79406824.

It can be written as a sum of positive squares in 2 ways, for example, as 425885769 + 2719201 = 20637^2 + 1649^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21430239 + ... + 21430258.

Almost surely, 2^428604970 is an apocalyptic number.

428604970 is a deficient number, since it is larger than the sum of its proper divisors (342883994).

428604970 is a wasteful number, since it uses less digits than its factorization.

428604970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42860504.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 428604970 is about 20702.7768668843. The cubic root of 428604970 is about 753.9671094294.

The spelling of 428604970 in words is "four hundred twenty-eight million, six hundred four thousand, nine hundred seventy".