1328572 has 24 divisors (see below), whose sum is σ = 2774016. Its totient is φ = 544368.

The previous prime is 1328563. The next prime is 1328573. The reversal of 1328572 is 2758231.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 1 + 3⁷ + 2⁵ + 8⁶ + 5⁶ + 7 + 2²⁰ .

It is a plaindrome in base 16.

It is a self number, because there is not a number n which added to its sum of digits gives 1328572.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328573) 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, 388 + ... + 1675.

It is an arithmetic number, because the mean of its divisors is an integer number (115584).

2^1328572 is an apocalyptic number.

It is an amenable number.

1328572 is an abundant number, since it is smaller than the sum of its proper divisors (1445444).

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

1328572 is a wasteful number, since it uses less digits than its factorization.

1328572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2097 (or 2095 counting only the distinct ones).

The product of its digits is 3360, while the sum is 28.

The square root of 1328572 is about 1152.6369766757. The cubic root of 1328572 is about 109.9330722348.

The spelling of 1328572 in words is "one million, three hundred twenty-eight thousand, five hundred seventy-two".