1869223680 has 216 divisors, whose sum is σ = 6506419920. Its totient is φ = 495452160.

The previous prime is 1869223649. The next prime is 1869223691. The reversal of 1869223680 is 863229681.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2430336 + ... + 2431104.

Almost surely, 2^1869223680 is an apocalyptic number.

1869223680 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 1869223680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3253209960).

1869223680 is an abundant number, since it is smaller than the sum of its proper divisors (4637196240).

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

1869223680 is a wasteful number, since it uses less digits than its factorization.

1869223680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1007 (or 990 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 1869223680 is about 43234.5195416810. The cubic root of 1869223680 is about 1231.8384563586.

The spelling of 1869223680 in words is "one billion, eight hundred sixty-nine million, two hundred twenty-three thousand, six hundred eighty".