428642572 has 12 divisors (see below), whose sum is σ = 753489856. Its totient is φ = 213359760.

The previous prime is 428642569. The next prime is 428642579. The reversal of 428642572 is 275246824.

It is not an unprimeable number, because it can be changed into a prime (428642579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239379 + ... + 241162.

Almost surely, 2^428642572 is an apocalyptic number.

It is an amenable number.

428642572 is a deficient number, since it is larger than the sum of its proper divisors (324847284).

428642572 is a wasteful number, since it uses less digits than its factorization.

428642572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 480768 (or 480766 counting only the distinct ones).

The product of its digits is 215040, while the sum is 40.

The square root of 428642572 is about 20703.6849860115. The cubic root of 428642572 is about 753.9891575811.

The spelling of 428642572 in words is "four hundred twenty-eight million, six hundred forty-two thousand, five hundred seventy-two".