1789822980 has 240 divisors, whose sum is σ = 6258422016. Its totient is φ = 424465920.

The previous prime is 1789822963. The next prime is 1789822987. The reversal of 1789822980 is 892289871.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (1789822987) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 836472 + ... + 838608.

Almost surely, 2^1789822980 is an apocalyptic number.

1789822980 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 1789822980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3129211008).

1789822980 is an abundant number, since it is smaller than the sum of its proper divisors (4468599036).

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

1789822980 is a wasteful number, since it uses less digits than its factorization.

1789822980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2216 (or 2205 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 54.

The square root of 1789822980 is about 42306.2995309209. The cubic root of 1789822980 is about 1214.1435207628.

The spelling of 1789822980 in words is "one billion, seven hundred eighty-nine million, eight hundred twenty-two thousand, nine hundred eighty".