428031376 has 20 divisors (see below), whose sum is σ = 841690672. Its totient is φ = 210820896.

The previous prime is 428031367. The next prime is 428031379. The reversal of 428031376 is 673130824.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (428031379) 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, 198570 + ... + 200713.

Almost surely, 2^428031376 is an apocalyptic number.

It is an amenable number.

428031376 is a deficient number, since it is larger than the sum of its proper divisors (413659296).

428031376 is a wasteful number, since it uses less digits than its factorization.

428031376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 399358 (or 399352 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 34.

The square root of 428031376 is about 20688.9191597821. The cubic root of 428031376 is about 753.6306192604.

The spelling of 428031376 in words is "four hundred twenty-eight million, thirty-one thousand, three hundred seventy-six".