1227397248 has 384 divisors, whose sum is σ = 4479546240. Its totient is φ = 313344000.

The previous prime is 1227397243. The next prime is 1227397273. The reversal of 1227397248 is 8427937221.

1227397248 is a `hidden beast` number, since 12 + 2 + 7 + 397 + 248 = 666.

It is a tau number, because it is divible by the number of its divisors (384).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1227397243) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8959036 + ... + 8959172.

It is an arithmetic number, because the mean of its divisors is an integer number (11665485).

Almost surely, 2^1227397248 is an apocalyptic number.

1227397248 is a gapful number since it is divisible by the number (18) 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 1227397248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2239773120).

1227397248 is an abundant number, since it is smaller than the sum of its proper divisors (3252148992).

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

1227397248 is a wasteful number, since it uses less digits than its factorization.

1227397248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276 (or 261 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 1227397248 is about 35034.2296618607. The cubic root of 1227397248 is about 1070.6849918485.

The spelling of 1227397248 in words is "one billion, two hundred twenty-seven million, three hundred ninety-seven thousand, two hundred forty-eight".