2339686440 has 192 divisors, whose sum is σ = 9358876800. Its totient is φ = 493641216.

The previous prime is 2339686423. The next prime is 2339686451. The reversal of 2339686440 is 446869332.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2950 + ... + 68469.

It is an arithmetic number, because the mean of its divisors is an integer number (48744150).

Almost surely, 2^2339686440 is an apocalyptic number.

2339686440 is a gapful number since it is divisible by the number (20) 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 2339686440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4679438400).

2339686440 is an abundant number, since it is smaller than the sum of its proper divisors (7019190360).

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

2339686440 is a wasteful number, since it uses less digits than its factorization.

2339686440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71456 (or 71449 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 2339686440 is about 48370.3053535948. The cubic root of 2339686440 is about 1327.5550915032. Note that the first 3 decimals are identical.

The spelling of 2339686440 in words is "two billion, three hundred thirty-nine million, six hundred eighty-six thousand, four hundred forty".