1219968000 has 352 divisors, whose sum is σ = 4521741120. Its totient is φ = 324403200.

The previous prime is 1219967999. The next prime is 1219968011. The reversal of 1219968000 is 8699121.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3455824 + ... + 3456176.

Almost surely, 2^1219968000 is an apocalyptic number.

1219968000 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 1219968000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2260870560).

1219968000 is an abundant number, since it is smaller than the sum of its proper divisors (3301773120).

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

1219968000 is an equidigital number, since it uses as much as digits as its factorization.

1219968000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 363 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 36.

The square root of 1219968000 is about 34928.0403114747. The cubic root of 1219968000 is about 1068.5203877308.

The spelling of 1219968000 in words is "one billion, two hundred nineteen million, nine hundred sixty-eight thousand".