428657396 has 6 divisors (see below), whose sum is σ = 750150450. Its totient is φ = 214328696.

The previous prime is 428657393. The next prime is 428657447. The reversal of 428657396 is 693756824.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 285136996 + 143520400 = 16886^2 + 11980^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (428657393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53582171 + ... + 53582178.

It is an arithmetic number, because the mean of its divisors is an integer number (125025075).

Almost surely, 2^428657396 is an apocalyptic number.

It is an amenable number.

428657396 is a deficient number, since it is larger than the sum of its proper divisors (321493054).

428657396 is a wasteful number, since it uses less digits than its factorization.

428657396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107164353 (or 107164351 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 428657396 is about 20704.0429868178. The cubic root of 428657396 is about 753.9978493654.

The spelling of 428657396 in words is "four hundred twenty-eight million, six hundred fifty-seven thousand, three hundred ninety-six".