2381956140 has 24 divisors (see below), whose sum is σ = 6669477360. Its totient is φ = 635188288.

The previous prime is 2381956127. The next prime is 2381956163. The reversal of 2381956140 is 416591832.

2381956140 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19849575 + ... + 19849694.

It is an arithmetic number, because the mean of its divisors is an integer number (277894890).

Almost surely, 2^2381956140 is an apocalyptic number.

2381956140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2381956140 is an abundant number, since it is smaller than the sum of its proper divisors (4287521220).

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

2381956140 is a wasteful number, since it uses less digits than its factorization.

2381956140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39699281 (or 39699279 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 2381956140 is about 48805.2880331630. The cubic root of 2381956140 is about 1335.5021354492.

The spelling of 2381956140 in words is "two billion, three hundred eighty-one million, nine hundred fifty-six thousand, one hundred forty".