1528630 has 16 divisors (see below), whose sum is σ = 2791584. Its totient is φ = 602560.

The previous prime is 1528627. The next prime is 1528633. The reversal of 1528630 is 368251.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1528627) and next prime (1528633).

It is a junction number, because it is equal to n+sod(n) for n = 1528595 and 1528604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1528633) 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, 367 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (174474).

2^1528630 is an apocalyptic number.

1528630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1528630 is a deficient number, since it is larger than the sum of its proper divisors (1262954).

1528630 is a wasteful number, since it uses less digits than its factorization.

1528630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 1528630 is about 1236.3777739833. The cubic root of 1528630 is about 115.1951318513.

The spelling of 1528630 in words is "one million, five hundred twenty-eight thousand, six hundred thirty".