1260528210 has 256 divisors, whose sum is σ = 3775680000. Its totient is φ = 297851904.

The previous prime is 1260528209. The next prime is 1260528233. The reversal of 1260528210 is 128250621.

It is a happy number.

1260528210 is a `hidden beast` number, since 12 + 605 + 28 + 21 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5504376 + ... + 5504604.

It is an arithmetic number, because the mean of its divisors is an integer number (14748750).

Almost surely, 2^1260528210 is an apocalyptic number.

1260528210 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 1260528210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1887840000).

1260528210 is an abundant number, since it is smaller than the sum of its proper divisors (2515151790).

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

1260528210 is a wasteful number, since it uses less digits than its factorization.

1260528210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330 (or 324 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 1260528210 is about 35503.9182344710. The cubic root of 1260528210 is about 1080.2332058128.

Adding to 1260528210 its reverse (128250621), we get a palindrome (1388778831).

The spelling of 1260528210 in words is "one billion, two hundred sixty million, five hundred twenty-eight thousand, two hundred ten".