1296528930 has 96 divisors (see below), whose sum is σ = 3562138944. Its totient is φ = 339183936.

The previous prime is 1296528917. The next prime is 1296528931. The reversal of 1296528930 is 398256921.

1296528930 is a `hidden beast` number, since 1 + 2 + 96 + 528 + 9 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1296528931) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 123757 + ... + 133823.

It is an arithmetic number, because the mean of its divisors is an integer number (37105614).

Almost surely, 2^1296528930 is an apocalyptic number.

1296528930 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1296528930, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1781069472).

1296528930 is an abundant number, since it is smaller than the sum of its proper divisors (2265610014).

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

1296528930 is a wasteful number, since it uses less digits than its factorization.

1296528930 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10142 (or 10130 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 1296528930 is about 36007.3455006058. The cubic root of 1296528930 is about 1090.4206579942.

The spelling of 1296528930 in words is "one billion, two hundred ninety-six million, five hundred twenty-eight thousand, nine hundred thirty".