2788020180 has 144 divisors (see below), whose sum is σ = 9260491968. Its totient is φ = 673344000.

The previous prime is 2788020149. The next prime is 2788020181. The reversal of 2788020180 is 810208872.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2788020181) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 553875 + ... + 558885.

It is an arithmetic number, because the mean of its divisors is an integer number (64308972).

Almost surely, 2^2788020180 is an apocalyptic number.

2788020180 is a gapful number since it is divisible by the number (20) 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 2788020180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4630245984).

2788020180 is an abundant number, since it is smaller than the sum of its proper divisors (6472471788).

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

2788020180 is a wasteful number, since it uses less digits than its factorization.

2788020180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5318 (or 5313 counting only the distinct ones).

The product of its (nonzero) digits is 14336, while the sum is 36.

The square root of 2788020180 is about 52801.7062224319. The cubic root of 2788020180 is about 1407.4467449329.

The spelling of 2788020180 in words is "two billion, seven hundred eighty-eight million, twenty thousand, one hundred eighty".