1530630 has 32 divisors (see below), whose sum is σ = 4082400. Its totient is φ = 408096.

The previous prime is 1530623. The next prime is 1530631. The reversal of 1530630 is 360351.

1530630 is a `hidden beast` number, since 1 + 5 + 30 + 630 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530631) 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 15 ways as a sum of consecutive naturals, for example, 2565 + ... + 3104.

It is an arithmetic number, because the mean of its divisors is an integer number (127575).

2^1530630 is an apocalyptic number.

1530630 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1530630 is an abundant number, since it is smaller than the sum of its proper divisors (2551770).

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

1530630 is a wasteful number, since it uses less digits than its factorization.

1530630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5685 (or 5679 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 18.

The square root of 1530630 is about 1237.1863238817. The cubic root of 1530630 is about 115.2453488994.

Adding to 1530630 its reverse (360351), we get a palindrome (1890981).

The spelling of 1530630 in words is "one million, five hundred thirty thousand, six hundred thirty".