1227444144 has 40 divisors (see below), whose sum is σ = 3182986752. Its totient is φ = 407588160.

The previous prime is 1227444143. The next prime is 1227444199. The reversal of 1227444144 is 4414447221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1227444143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35992 + ... + 61239.

Almost surely, 2^1227444144 is an apocalyptic number.

It is an amenable number.

1227444144 is an abundant number, since it is smaller than the sum of its proper divisors (1955542608).

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

1227444144 is a wasteful number, since it uses less digits than its factorization.

1227444144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97505 (or 97499 counting only the distinct ones).

The product of its digits is 28672, while the sum is 33.

The square root of 1227444144 is about 35034.8989437675. The cubic root of 1227444144 is about 1070.6986278044.

The spelling of 1227444144 in words is "one billion, two hundred twenty-seven million, four hundred forty-four thousand, one hundred forty-four".