1226789260 has 24 divisors (see below), whose sum is σ = 2584554336. Its totient is φ = 489135360.

The previous prime is 1226789177. The next prime is 1226789273. The reversal of 1226789260 is 629876221.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92397 + ... + 104836.

It is an arithmetic number, because the mean of its divisors is an integer number (107689764).

Almost surely, 2^1226789260 is an apocalyptic number.

1226789260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1226789260 is an abundant number, since it is smaller than the sum of its proper divisors (1357765076).

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

1226789260 is a wasteful number, since it uses less digits than its factorization.

1226789260 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197553 (or 197551 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 1226789260 is about 35025.5515302757. The cubic root of 1226789260 is about 1070.5081756515.

The spelling of 1226789260 in words is "one billion, two hundred twenty-six million, seven hundred eighty-nine thousand, two hundred sixty".