1012568280 has 256 divisors, whose sum is σ = 3342643200. Its totient is φ = 244408320.

The previous prime is 1012568269. The next prime is 1012568287. The reversal of 1012568280 is 828652101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012568287) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9830709 + ... + 9830811.

It is an arithmetic number, because the mean of its divisors is an integer number (13057200).

Almost surely, 2^1012568280 is an apocalyptic number.

1012568280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1012568280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1671321600).

1012568280 is an abundant number, since it is smaller than the sum of its proper divisors (2330074920).

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

1012568280 is a wasteful number, since it uses less digits than its factorization.

1012568280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 270 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 33.

The square root of 1012568280 is about 31820.8780519960. The cubic root of 1012568280 is about 1004.1719969032.

The spelling of 1012568280 in words is "one billion, twelve million, five hundred sixty-eight thousand, two hundred eighty".