1224404064 has 144 divisors (see below), whose sum is σ = 3775432752. Its totient is φ = 374160384.

The previous prime is 1224404063. The next prime is 1224404089. The reversal of 1224404064 is 4604044221.

It is a happy number.

1224404064 is a `hidden beast` number, since 12 + 244 + 0 + 406 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1224404063) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 586767 + ... + 588849.

It is an arithmetic number, because the mean of its divisors is an integer number (26218283).

Almost surely, 2^1224404064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1224404064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1887716376).

1224404064 is an abundant number, since it is smaller than the sum of its proper divisors (2551028688).

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

1224404064 is a wasteful number, since it uses less digits than its factorization.

1224404064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269 (or 2258 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 1224404064 is about 34991.4855929267. The cubic root of 1224404064 is about 1069.8139438339.

Adding to 1224404064 its reverse (4604044221), we get a palindrome (5828448285).

The spelling of 1224404064 in words is "one billion, two hundred twenty-four million, four hundred four thousand, sixty-four".