18679020240 has 160 divisors (see below), whose sum is σ = 59853597696. Its totient is φ = 4813885440.

The previous prime is 18679020229. The next prime is 18679020247. The reversal of 18679020240 is 4202097681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18679020247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8130772 + ... + 8133068.

Almost surely, 2^18679020240 is an apocalyptic number.

18679020240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18679020240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29926798848).

18679020240 is an abundant number, since it is smaller than the sum of its proper divisors (41174577456).

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

18679020240 is a wasteful number, since it uses less digits than its factorization.

18679020240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437 (or 3431 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 39.

The spelling of 18679020240 in words is "eighteen billion, six hundred seventy-nine million, twenty thousand, two hundred forty".