2188782382 has 4 divisors (see below), whose sum is σ = 3283173576. Its totient is φ = 1094391190.

The previous prime is 2188782359. The next prime is 2188782383. The reversal of 2188782382 is 2832878812.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2188782383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 547195594 + ... + 547195597.

It is an arithmetic number, because the mean of its divisors is an integer number (820793394).

Almost surely, 2^2188782382 is an apocalyptic number.

2188782382 is a deficient number, since it is larger than the sum of its proper divisors (1094391194).

2188782382 is a wasteful number, since it uses less digits than its factorization.

2188782382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094391193.

The product of its digits is 688128, while the sum is 49.

The square root of 2188782382 is about 46784.4245663020. The cubic root of 2188782382 is about 1298.3771429943.

The spelling of 2188782382 in words is "two billion, one hundred eighty-eight million, seven hundred eighty-two thousand, three hundred eighty-two".