2389929940 has 24 divisors (see below), whose sum is σ = 5057170272. Its totient is φ = 948673440.

The previous prime is 2389929889. The next prime is 2389929943. The reversal of 2389929940 is 499299832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2389929943) 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, 453474 + ... + 458713.

It is an arithmetic number, because the mean of its divisors is an integer number (210715428).

Almost surely, 2^2389929940 is an apocalyptic number.

2389929940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2389929940 is an abundant number, since it is smaller than the sum of its proper divisors (2667240332).

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

2389929940 is a wasteful number, since it uses less digits than its factorization.

2389929940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912327 (or 912325 counting only the distinct ones).

The product of its (nonzero) digits is 2519424, while the sum is 55.

The square root of 2389929940 is about 48886.9096998368. The cubic root of 2389929940 is about 1336.9907111565.

The spelling of 2389929940 in words is "two billion, three hundred eighty-nine million, nine hundred twenty-nine thousand, nine hundred forty".