1227918048 has 192 divisors, whose sum is σ = 3810240000. Its totient is φ = 346063872.

The previous prime is 1227918047. The next prime is 1227918071. The reversal of 1227918048 is 8408197221.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1227918047) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 2930383 + ... + 2930801.

It is an arithmetic number, because the mean of its divisors is an integer number (19845000).

Almost surely, 2^1227918048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1227918048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905120000).

1227918048 is an abundant number, since it is smaller than the sum of its proper divisors (2582321952).

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

1227918048 is an equidigital number, since it uses as much as digits as its factorization.

1227918048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542 (or 520 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 42.

The square root of 1227918048 is about 35041.6616044388. The cubic root of 1227918048 is about 1070.8364054450.

The spelling of 1227918048 in words is "one billion, two hundred twenty-seven million, nine hundred eighteen thousand, forty-eight".