1530640356 has 96 divisors (see below), whose sum is σ = 4344544512. Its totient is φ = 409436160.

The previous prime is 1530640313. The next prime is 1530640403. The reversal of 1530640356 is 6530460351.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278596 + ... + 284036.

It is an arithmetic number, because the mean of its divisors is an integer number (45255672).

Almost surely, 2^1530640356 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1530640356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2172272256).

1530640356 is an abundant number, since it is smaller than the sum of its proper divisors (2813904156).

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

1530640356 is a wasteful number, since it uses less digits than its factorization.

1530640356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5669 (or 5667 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 33.

The square root of 1530640356 is about 39123.3990854578. The cubic root of 1530640356 is about 1152.4560880937.

The spelling of 1530640356 in words is "one billion, five hundred thirty million, six hundred forty thousand, three hundred fifty-six".