2855953920 has 80 divisors (see below), whose sum is σ = 9130152240. Its totient is φ = 761585664.

The previous prime is 2855953883. The next prime is 2855953927. The reversal of 2855953920 is 293595582.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 2855953920.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2855953927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178255 + ... + 193614.

It is an arithmetic number, because the mean of its divisors is an integer number (114126903).

Almost surely, 2^2855953920 is an apocalyptic number.

2855953920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2855953920 is an abundant number, since it is smaller than the sum of its proper divisors (6274198320).

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

2855953920 is an equidigital number, since it uses as much as digits as its factorization.

2855953920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371895 (or 371879 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 48.

The square root of 2855953920 is about 53441.1257366459. The cubic root of 2855953920 is about 1418.7865584193.

The spelling of 2855953920 in words is "two billion, eight hundred fifty-five million, nine hundred fifty-three thousand, nine hundred twenty".