1223980064 has 12 divisors (see below), whose sum is σ = 2409710814. Its totient is φ = 611990016.

The previous prime is 1223980049. The next prime is 1223980097. The reversal of 1223980064 is 4600893221.

It can be written as a sum of positive squares in only one way, i.e., 828288400 + 395691664 = 28780^2 + 19892^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19124657 + ... + 19124720.

Almost surely, 2^1223980064 is an apocalyptic number.

It is an amenable number.

1223980064 is a deficient number, since it is larger than the sum of its proper divisors (1185730750).

1223980064 is an equidigital number, since it uses as much as digits as its factorization.

1223980064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38249387 (or 38249379 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 1223980064 is about 34985.4264515955. The cubic root of 1223980064 is about 1069.6904406280.

The spelling of 1223980064 in words is "one billion, two hundred twenty-three million, nine hundred eighty thousand, sixty-four".