1223419648 has 72 divisors (see below), whose sum is σ = 2672570880. Its totient is φ = 554327040.

The previous prime is 1223419643. The next prime is 1223419649. The reversal of 1223419648 is 8469143221.

It is a super-2 number, since 2×1223419648² = 2993511270224887808, which contains 22 as substring.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1223419648.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1223419643) 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, 1348411 + ... + 1349317.

It is an arithmetic number, because the mean of its divisors is an integer number (37119040).

Almost surely, 2^1223419648 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 1223419648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1336285440).

1223419648 is an abundant number, since it is smaller than the sum of its proper divisors (1449151232).

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

1223419648 is an equidigital number, since it uses as much as digits as its factorization.

1223419648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1413 (or 1399 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The square root of 1223419648 is about 34977.4162567792. The cubic root of 1223419648 is about 1069.5271582427.

The spelling of 1223419648 in words is "one billion, two hundred twenty-three million, four hundred nineteen thousand, six hundred forty-eight".