1528212 has 72 divisors (see below), whose sum is σ = 4366656. Its totient is φ = 413952.

The previous prime is 1528199. The next prime is 1528223. The reversal of 1528212 is 2128251.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13468 + ... + 13580.

It is an arithmetic number, because the mean of its divisors is an integer number (60648).

2^1528212 is an apocalyptic number.

1528212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1528212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2183328).

1528212 is an abundant number, since it is smaller than the sum of its proper divisors (2838444).

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

1528212 is a wasteful number, since it uses less digits than its factorization.

1528212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157 (or 148 counting only the distinct ones).

The product of its digits is 320, while the sum is 21.

The square root of 1528212 is about 1236.2087202410. The cubic root of 1528212 is about 115.1846309551.

The spelling of 1528212 in words is "one million, five hundred twenty-eight thousand, two hundred twelve".