1530442 has 8 divisors (see below), whose sum is σ = 2430756. Its totient is φ = 720192.

The previous prime is 1530409. The next prime is 1530457. The reversal of 1530442 is 2440351.

It can be written as a sum of positive squares in 2 ways, for example, as 1490841 + 39601 = 1221^2 + 199^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22473 + ... + 22540.

2^1530442 is an apocalyptic number.

1530442 is a deficient number, since it is larger than the sum of its proper divisors (900314).

1530442 is a wasteful number, since it uses less digits than its factorization.

1530442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45032.

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 1530442 is about 1237.1103426938. The cubic root of 1530442 is about 115.2406303602.

Adding to 1530442 its reverse (2440351), we get a palindrome (3970793).

Subtracting 1530442 from its reverse (2440351), we obtain a palindrome (909909).

The spelling of 1530442 in words is "one million, five hundred thirty thousand, four hundred forty-two".