1228577344 has 28 divisors (see below), whose sum is σ = 2522029500. Its totient is φ = 593105408.

The previous prime is 1228577293. The next prime is 1228577347. The reversal of 1228577344 is 4437758221.

It can be written as a sum of positive squares in 2 ways, for example, as 918817344 + 309760000 = 30312^2 + 17600^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1228577344.

It is not an unprimeable number, because it can be changed into a prime (1228577347) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 329119 + ... + 332830.

Almost surely, 2^1228577344 is an apocalyptic number.

It is an amenable number.

1228577344 is an abundant number, since it is smaller than the sum of its proper divisors (1293452156).

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

1228577344 is an equidigital number, since it uses as much as digits as its factorization.

1228577344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 661990 (or 661980 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 1228577344 is about 35051.0676584894. The cubic root of 1228577344 is about 1071.0280229672.

The spelling of 1228577344 in words is "one billion, two hundred twenty-eight million, five hundred seventy-seven thousand, three hundred forty-four".