2188769242 has 24 divisors (see below), whose sum is σ = 3613221108. Its totient is φ = 993664320.

The previous prime is 2188769203. The next prime is 2188769269. The reversal of 2188769242 is 2429678812.

It can be written as a sum of positive squares in 2 ways, for example, as 2143597401 + 45171841 = 46299^2 + 6721^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 207078 + ... + 217390.

Almost surely, 2^2188769242 is an apocalyptic number.

2188769242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2188769242 is a deficient number, since it is larger than the sum of its proper divisors (1424451866).

2188769242 is a wasteful number, since it uses less digits than its factorization.

2188769242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11214 (or 11203 counting only the distinct ones).

The product of its digits is 774144, while the sum is 49.

The square root of 2188769242 is about 46784.2841347391. The cubic root of 2188769242 is about 1298.3745447902.

The spelling of 2188769242 in words is "two billion, one hundred eighty-eight million, seven hundred sixty-nine thousand, two hundred forty-two".