428269766 has 32 divisors (see below), whose sum is σ = 694848000. Its totient is φ = 197316000.

The previous prime is 428269753. The next prime is 428269771. The reversal of 428269766 is 667962824.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 569891 + ... + 570641.

It is an arithmetic number, because the mean of its divisors is an integer number (21714000).

Almost surely, 2^428269766 is an apocalyptic number.

428269766 is a deficient number, since it is larger than the sum of its proper divisors (266578234).

428269766 is a wasteful number, since it uses less digits than its factorization.

428269766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1164.

The product of its digits is 1741824, while the sum is 50.

The square root of 428269766 is about 20694.6796544426. The cubic root of 428269766 is about 753.7705036010.

The spelling of 428269766 in words is "four hundred twenty-eight million, two hundred sixty-nine thousand, seven hundred sixty-six".