1223179648 has 64 divisors (see below), whose sum is σ = 2663521920. Its totient is φ = 557015040.

The previous prime is 1223179627. The next prime is 1223179667. The reversal of 1223179648 is 8469713221.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58390 + ... + 76522.

It is an arithmetic number, because the mean of its divisors is an integer number (41617530).

Almost surely, 2^1223179648 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 1223179648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1331760960).

1223179648 is an abundant number, since it is smaller than the sum of its proper divisors (1440342272).

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

1223179648 is a wasteful number, since it uses less digits than its factorization.

1223179648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18195 (or 18183 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 1223179648 is about 34973.9853033651. The cubic root of 1223179648 is about 1069.4572167730.

The spelling of 1223179648 in words is "one billion, two hundred twenty-three million, one hundred seventy-nine thousand, six hundred forty-eight".