1530509938 has 16 divisors (see below), whose sum is σ = 2372037696. Its totient is φ = 740237680.

The previous prime is 1530509837. The next prime is 1530509969. The reversal of 1530509938 is 8399050351.

It is a junction number, because it is equal to n+sod(n) for n = 1530509894 and 1530509903.

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, 94156 + ... + 109207.

It is an arithmetic number, because the mean of its divisors is an integer number (148252356).

Almost surely, 2^1530509938 is an apocalyptic number.

1530509938 is a deficient number, since it is larger than the sum of its proper divisors (841527758).

1530509938 is a wasteful number, since it uses less digits than its factorization.

1530509938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203489.

The product of its (nonzero) digits is 145800, while the sum is 43.

The square root of 1530509938 is about 39121.7322980463. The cubic root of 1530509938 is about 1152.4233555435.

The spelling of 1530509938 in words is "one billion, five hundred thirty million, five hundred nine thousand, nine hundred thirty-eight".