1780216060 has 72 divisors (see below), whose sum is σ = 4361197680. Its totient is φ = 608622336.

The previous prime is 1780216051. The next prime is 1780216079. The reversal of 1780216060 is 606120871.

1780216060 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

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, 369024 + ... + 373816.

It is an arithmetic number, because the mean of its divisors is an integer number (60572190).

Almost surely, 2^1780216060 is an apocalyptic number.

1780216060 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 1780216060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2180598840).

1780216060 is an abundant number, since it is smaller than the sum of its proper divisors (2580981620).

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

1780216060 is a wasteful number, since it uses less digits than its factorization.

1780216060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195 (or 5186 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 1780216060 is about 42192.6066983305. The cubic root of 1780216060 is about 1211.9673071526.

The spelling of 1780216060 in words is "one billion, seven hundred eighty million, two hundred sixteen thousand, sixty".