1227399360 has 224 divisors, whose sum is σ = 4343473152. Its totient is φ = 291102720.

The previous prime is 1227399343. The next prime is 1227399401. The reversal of 1227399360 is 639937221.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 495084 + ... + 497556.

Almost surely, 2^1227399360 is an apocalyptic number.

1227399360 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 1227399360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2171736576).

1227399360 is an abundant number, since it is smaller than the sum of its proper divisors (3116073792).

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

1227399360 is a wasteful number, since it uses less digits than its factorization.

1227399360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2551 (or 2541 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 1227399360 is about 35034.2598037978. The cubic root of 1227399360 is about 1070.6856059625.

It can be divided in two parts, 12 and 27399360, that added together give a palindrome (27399372).

The spelling of 1227399360 in words is "one billion, two hundred twenty-seven million, three hundred ninety-nine thousand, three hundred sixty".