2188490760 has 48 divisors (see below), whose sum is σ = 7112596140. Its totient is φ = 583597440.

The previous prime is 2188490677. The next prime is 2188490761. The reversal of 2188490760 is 670948812.

2188490760 is a `hidden beast` number, since 21 + 88 + 490 + 7 + 60 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1997553636 + 190937124 = 44694^2 + 13818^2 .

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (2188490761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3039211 + ... + 3039930.

Almost surely, 2^2188490760 is an apocalyptic number.

2188490760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2188490760 is an abundant number, since it is smaller than the sum of its proper divisors (4924105380).

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

2188490760 is a wasteful number, since it uses less digits than its factorization.

2188490760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6079158 (or 6079151 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 2188490760 is about 46781.3078055755. The cubic root of 2188490760 is about 1298.3194774235.

The spelling of 2188490760 in words is "two billion, one hundred eighty-eight million, four hundred ninety thousand, seven hundred sixty".