1227007980 has 384 divisors, whose sum is σ = 4572288000. Its totient is φ = 269660160.

The previous prime is 1227007939. The next prime is 1227007981. The reversal of 1227007980 is 897007221.

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 (1227007981) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2928211 + ... + 2928629.

It is an arithmetic number, because the mean of its divisors is an integer number (11907000).

Almost surely, 2^1227007980 is an apocalyptic number.

1227007980 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 1227007980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2286144000).

1227007980 is an abundant number, since it is smaller than the sum of its proper divisors (3345280020).

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

1227007980 is a wasteful number, since it uses less digits than its factorization.

1227007980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 1227007980 is about 35028.6736831414. The cubic root of 1227007980 is about 1070.5717909337.

The spelling of 1227007980 in words is "one billion, two hundred twenty-seven million, seven thousand, nine hundred eighty".