1530221796 has 36 divisors (see below), whose sum is σ = 3886411984. Its totient is φ = 507654000.

The previous prime is 1530221761. The next prime is 1530221813. The reversal of 1530221796 is 6971220351.

1530221796 is a `hidden beast` number, since 1 + 530 + 22 + 17 + 96 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1530221796.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 93130 + ... + 108321.

Almost surely, 2^1530221796 is an apocalyptic number.

It is an amenable number.

1530221796 is an abundant number, since it is smaller than the sum of its proper divisors (2356190188).

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

1530221796 is a wasteful number, since it uses less digits than its factorization.

1530221796 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201672 (or 201667 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 1530221796 is about 39118.0494912515. The cubic root of 1530221796 is about 1152.3510305397.

The spelling of 1530221796 in words is "one billion, five hundred thirty million, two hundred twenty-one thousand, seven hundred ninety-six".