1223040000 has 660 divisors, whose sum is σ = 5103072744. Its totient is φ = 258048000.

The previous prime is 1223039999. The next prime is 1223040023. The reversal of 1223040000 is 403221.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 94079994 + ... + 94080006.

Almost surely, 2^1223040000 is an apocalyptic number.

1223040000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1223040000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2551536372).

1223040000 is an abundant number, since it is smaller than the sum of its proper divisors (3880032744).

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

1223040000 is an equidigital number, since it uses as much as digits as its factorization.

1223040000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70 (or 30 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 12.

The square root of 1223040000 is about 34971.9887910310. The cubic root of 1223040000 is about 1069.4165159526.

Adding to 1223040000 its reverse (403221), we get a palindrome (1223443221).

The spelling of 1223040000 in words is "one billion, two hundred twenty-three million, forty thousand".