1528664 has 32 divisors (see below), whose sum is σ = 3078000. Its totient is φ = 709632.

The previous prime is 1528661. The next prime is 1528669. The reversal of 1528664 is 4668251.

It is a self number, because there is not a number n which added to its sum of digits gives 1528664.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1528661) 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 7 ways as a sum of consecutive naturals, for example, 13472 + ... + 13584.

2^1528664 is an apocalyptic number.

It is an amenable number.

1528664 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

1528664 is a wasteful number, since it uses less digits than its factorization.

1528664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 223 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 1528664 is about 1236.3915237497. The cubic root of 1528664 is about 115.1959859069.

The spelling of 1528664 in words is "one million, five hundred twenty-eight thousand, six hundred sixty-four".