2393891940 has 48 divisors (see below), whose sum is σ = 7312253760. Its totient is φ = 580337280.

The previous prime is 2393891933. The next prime is 2393891953. The reversal of 2393891940 is 491983932.

It is a self number, because there is not a number n which added to its sum of digits gives 2393891940.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1812895 + ... + 1814214.

It is an arithmetic number, because the mean of its divisors is an integer number (152338620).

Almost surely, 2^2393891940 is an apocalyptic number.

2393891940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2393891940 is an abundant number, since it is smaller than the sum of its proper divisors (4918361820).

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

2393891940 is a wasteful number, since it uses less digits than its factorization.

2393891940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3627132 (or 3627130 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 48.

The square root of 2393891940 is about 48927.4150144886. The cubic root of 2393891940 is about 1337.7291195106.

The spelling of 2393891940 in words is "two billion, three hundred ninety-three million, eight hundred ninety-one thousand, nine hundred forty".