8742240188 has 24 divisors (see below), whose sum is σ = 17228112384. Its totient is φ = 3845559600.

The previous prime is 8742240187. The next prime is 8742240277. The reversal of 8742240188 is 8810422478.

It is a Smith number, since the sum of its digits (44) 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 (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8742240187) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 3203270 + ... + 3205997.

It is an arithmetic number, because the mean of its divisors is an integer number (717838016).

Almost surely, 2^8742240188 is an apocalyptic number.

It is an amenable number.

8742240188 is a deficient number, since it is larger than the sum of its proper divisors (8485872196).

8742240188 is a wasteful number, since it uses less digits than its factorization.

8742240188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6409313 (or 6409311 counting only the distinct ones).

The product of its (nonzero) digits is 229376, while the sum is 44.

The square root of 8742240188 is about 93499.9475293970. The cubic root of 8742240188 is about 2060.0333192839.

The spelling of 8742240188 in words is "eight billion, seven hundred forty-two million, two hundred forty thousand, one hundred eighty-eight".