1227776480 has 192 divisors, whose sum is σ = 3472035840. Its totient is φ = 401393664.

The previous prime is 1227776479. The next prime is 1227776497. The reversal of 1227776480 is 846777221.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3345257 + ... + 3345623.

It is an arithmetic number, because the mean of its divisors is an integer number (18083520).

Almost surely, 2^1227776480 is an apocalyptic number.

1227776480 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 1227776480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1736017920).

1227776480 is an abundant number, since it is smaller than the sum of its proper divisors (2244259360).

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

1227776480 is a wasteful number, since it uses less digits than its factorization.

1227776480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521 (or 513 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 44.

The square root of 1227776480 is about 35039.6415506780. The cubic root of 1227776480 is about 1070.7952512343.

The spelling of 1227776480 in words is "one billion, two hundred twenty-seven million, seven hundred seventy-six thousand, four hundred eighty".