1530321242 has 16 divisors (see below), whose sum is σ = 2380341600. Its totient is φ = 737000880.

The previous prime is 1530321211. The next prime is 1530321251. The reversal of 1530321242 is 2421230351.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7184 + ... + 55787.

It is an arithmetic number, because the mean of its divisors is an integer number (148771350).

Almost surely, 2^1530321242 is an apocalyptic number.

1530321242 is a deficient number, since it is larger than the sum of its proper divisors (850020358).

1530321242 is a wasteful number, since it uses less digits than its factorization.

1530321242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63421.

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 1530321242 is about 39119.3205718095. The cubic root of 1530321242 is about 1152.3759929816.

Adding to 1530321242 its reverse (2421230351), we get a palindrome (3951551593).

The spelling of 1530321242 in words is "one billion, five hundred thirty million, three hundred twenty-one thousand, two hundred forty-two".