1228960260 has 288 divisors, whose sum is σ = 4457980800. Its totient is φ = 270520320.

The previous prime is 1228960247. The next prime is 1228960267. The reversal of 1228960260 is 620698221.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (1228960267) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 975511 + ... + 976769.

It is an arithmetic number, because the mean of its divisors is an integer number (15479100).

Almost surely, 2^1228960260 is an apocalyptic number.

1228960260 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 1228960260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2228990400).

1228960260 is an abundant number, since it is smaller than the sum of its proper divisors (3229020540).

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

1228960260 is a wasteful number, since it uses less digits than its factorization.

1228960260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1228960260 is about 35056.5294916653. The cubic root of 1228960260 is about 1071.1392820503.

The spelling of 1228960260 in words is "one billion, two hundred twenty-eight million, nine hundred sixty thousand, two hundred sixty".