2856518940 has 48 divisors (see below), whose sum is σ = 8725368960. Its totient is φ = 692489280.

The previous prime is 2856518897. The next prime is 2856518947. The reversal of 2856518940 is 498156582.

It is a self number, because there is not a number n which added to its sum of digits gives 2856518940.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2856518947) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2163370 + ... + 2164689.

It is an arithmetic number, because the mean of its divisors is an integer number (181778520).

Almost surely, 2^2856518940 is an apocalyptic number.

2856518940 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2856518940 is an abundant number, since it is smaller than the sum of its proper divisors (5868850020).

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

2856518940 is a wasteful number, since it uses less digits than its factorization.

2856518940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4328082 (or 4328080 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 2856518940 is about 53446.4118533695. The cubic root of 2856518940 is about 1418.8801161755.

The spelling of 2856518940 in words is "two billion, eight hundred fifty-six million, five hundred eighteen thousand, nine hundred forty".