1306528830 has 48 divisors (see below), whose sum is σ = 3488793984. Its totient is φ = 338990400.

The previous prime is 1306528807. The next prime is 1306528849. The reversal of 1306528830 is 388256031.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 192846 + ... + 199505.

It is an arithmetic number, because the mean of its divisors is an integer number (72683208).

Almost surely, 2^1306528830 is an apocalyptic number.

1306528830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1306528830 is an abundant number, since it is smaller than the sum of its proper divisors (2182265154).

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

1306528830 is a wasteful number, since it uses less digits than its factorization.

1306528830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 392401 (or 392398 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 1306528830 is about 36145.9379460542. The cubic root of 1306528830 is about 1093.2168890173.

The spelling of 1306528830 in words is "one billion, three hundred six million, five hundred twenty-eight thousand, eight hundred thirty".