2795811920 has 160 divisors (see below), whose sum is σ = 7559516160. Its totient is φ = 951441920.

The previous prime is 2795811917. The next prime is 2795811971. The reversal of 2795811920 is 291185972.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 949811 + ... + 952749.

It is an arithmetic number, because the mean of its divisors is an integer number (47246976).

Almost surely, 2^2795811920 is an apocalyptic number.

2795811920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2795811920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3779758080).

2795811920 is an abundant number, since it is smaller than the sum of its proper divisors (4763704240).

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

2795811920 is a wasteful number, since it uses less digits than its factorization.

2795811920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033 (or 3027 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 44.

The square root of 2795811920 is about 52875.4377759655. The cubic root of 2795811920 is about 1408.7566659711.

The spelling of 2795811920 in words is "two billion, seven hundred ninety-five million, eight hundred eleven thousand, nine hundred twenty".