1662528 has 56 divisors (see below), whose sum is σ = 5031232. Its totient is φ = 474624.

The previous prime is 1662527. The next prime is 1662547. The reversal of 1662528 is 8252661.

It is a tau number, because it is divible by the number of its divisors (56).

It is a junction number, because it is equal to n+sod(n) for n = 1662495 and 1662504.

It is not an unprimeable number, because it can be changed into a prime (1662527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 726 + ... + 1962.

2^1662528 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1662528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2515616).

1662528 is an abundant number, since it is smaller than the sum of its proper divisors (3368704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1662528 is a wasteful number, since it uses less digits than its factorization.

1662528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1259 (or 1249 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 1662528 is about 1289.3905537113. The cubic root of 1662528 is about 118.4648901664.

It can be divided in two parts, 16625 and 28, that added together give a triangular number (16653 = T₁₈₂).

The spelling of 1662528 in words is "one million, six hundred sixty-two thousand, five hundred twenty-eight".