2188897748 has 12 divisors (see below), whose sum is σ = 3832698912. Its totient is φ = 1093840920.

The previous prime is 2188897687. The next prime is 2188897807. The reversal of 2188897748 is 8477988812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143840 + ... + 158327.

It is an arithmetic number, because the mean of its divisors is an integer number (319391576).

Almost surely, 2^2188897748 is an apocalyptic number.

It is an amenable number.

2188897748 is a deficient number, since it is larger than the sum of its proper divisors (1643801164).

2188897748 is a wasteful number, since it uses less digits than its factorization.

2188897748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303982 (or 303980 counting only the distinct ones).

The product of its digits is 14450688, while the sum is 62.

The square root of 2188897748 is about 46785.6575031280. The cubic root of 2188897748 is about 1298.3999541468.

The spelling of 2188897748 in words is "two billion, one hundred eighty-eight million, eight hundred ninety-seven thousand, seven hundred forty-eight".